How to Resolve “Memory Card Error” From Canon IXUS 130

Canon IXUS 130 is a sophisticated digital camera that has a resolution of 14.1 megapixels. The camera is inbuilt with almost all advanced features, including fully wide-angle 4x zoom lens and motion blur technology. The IXUS camera is compatible with SDHC (Secure Digital High Capacity) and SDXC (Secure Digital Extreme Capacity) cards, with storage capacity as high as 2TB.

Since the storage memory of the cards is huge, data loss from these cards is simultaneously huge. One of the main reasons for data loss from cards is corruption of these cards. In most cases, you receive an error message after your card gets corrupted. However, an updated backup allows you to overcome card corruption. It allows you to restore data. But in case of unavailability of backup, you can use recovery software to recover data from a corrupted card.

As a practical case, you view the below error message on Canon IXUS 130 while attempting to view some previously stored photos on your SDHC card:

“Memory Card Error”

Every single photo saved in the memory card becomes inaccessible after the above error message appears. In addition, no more photo can be saved on card. In short, the card can not be read or written upon.

Cause:

The above error message that makes all the photos inaccessible is primarily caused due to corruption of card. Few reasons that are accountable for the above error message are virus infection, interrupted read/write operation, and human errors.

Resolution:

The resolution for the above error message is formatting of memory card in the camera itself. The process deletes all the previously saved data and allows you to save new data. While formatting proves a good resolution for users who do not require the old data, it becomes fatal for users, like photographers, detective agents, etc, who save critical data in their memory card. However, recovering formatted data now-a-days is an easy process. To do so, you need to use an advanced third-party Photo Recovery Software. A Image Recovery tool is readily available on the Internet by just one single click.

Posted in general | Comments Off on How to Resolve “Memory Card Error” From Canon IXUS 130

Clinic Management Software: Benefits of Clinic Software

Clinic management software is a web-based program which helps clinic owners manage their operations. It is already widely used in clinics in many regions of the world especially in the American continents, Europe, and Australia.

Here is a list of the many benefits of clinic management software.

1. It helps clinic owners simplify their business and helps them manage one clinic or a huge group of clinics.

2. It keeps and updates patients’ demographics like residence, gender, age, ethnicity, and diagnosis of patients.

3. It keeps and updates patients’ records like lungs chart, heart chart, kidney chart, weight and height charts, nutritional date, respiratory system chart and others.

4. It can print out prescriptions, patient records, billings, certificates, and others. It can also give information about patients’ prescription, medicine available, and the formulation of the medicine.

5. It completes receptions in an automated and systematized way.

6. It manages accounting needs and maintains the inventory.

7. It completes billing transactions.

8. It checks account balances.

5. It schedules multiple appointments.

6. It can send out multiple email reminders.

7. It allows patients to confirm appointment in real time with the use of a mobile phone or a computer.

8. It allows practitioners an easy and quick access to their schedule and patients’ record anytime.

9. It includes reporting tools which could quickly present, print out, or send out reports like patient visits, patients referred to other doctors, patients referred by other doctors, list of fee collection, and daily profit report.

10. It can multitask and designed for quick and easy usage which consequently lessens the stress of clinic owners and clinic employees.

11. It saves business owners a significant sum of money since clinic management software does not require expensive servers or IT support group.

12. It allows clinic owners maximize billable time and spend more time in taking care of their patients since almost all administrative procedures are supported by the software including the daily backing up of everyday reports.

13. It also allows clinic owners to spend more time in making their business grow.

14. Clinic management software general has security features like password facility to validate users, entry validation, data secrecy feature, and data access that is user defined.

Business establishments like clinics need to cope up with the fast advancement in technology nowadays. Otherwise, they will be left behind since most business enterprises are already using such software.

Posted in general | Comments Off on Clinic Management Software: Benefits of Clinic Software

How Are Brains Different From Computers?

Ever wondered how brains are different from computers? This article shows how. Read on to find out.

Brains consist of cells called neurons and they connect with millions of other neurons and information gets transferred across connection gaps called synapses. Inside the cells data are processed which gives rise to an idea, concept or understanding.

Computers are built of hardware chips and the central processing unit (CPU) processes data after receiving them from the other chips. How it processes data conss of several steps but the main outline is that software programs are fed into the CPU and processed. They provide end result information depending on how the programs are furnished with data and what the query is that fed into the system. If some information is asked that is outside the scope of the software programs, the computer gets limited in functioning.

Brains, however, are limitless. From childhood until adulthood, the brain gets more and more developed and mature. It can process unknown data or abstract data as well and provide insights and knowledge.

The brain is more complex than the CPU and therefore, with neurons and synaptic connections, it is possible to process all kinds of information. It uses the five senses: touch, smell, hearing, taste and sight and takes in information and produces knowledge.

On the other hand, the CPU of computers takes in data from the typing of the keyboard and processes it, which is very limited. However, it is only human beings feeding data, writing software programs and making the computer like like a brain although not quite so.

The brain is still more intelligent than the CPU of computers and has yet to train the computer to have like the brain of a human being.

Yes, computers will be able to take over many tasks of human beings but without human beings, they are lifeless because humans have to give life to these computers, operate on them and have regular updating, monitoring and maintenance on them.

Just as a brain needs to rest and relax, computers will also need that from time to time but they can operate longer times than the average brain. While the brain sleeps, the computer can carry on with its duties of processing data and converting them to knowledge and information.

Summing up, although the CPU is sometimes called the brain of the computer, it is actually a misnomer because as I have outlined in this article, the brain is definitely different from the computer in varying ways and the brain has yet to teach the computer to Behave 100% like a brain.

Posted in general | Comments Off on How Are Brains Different From Computers?

Who Invented Dell Computers?

The invention and the history of the Dell computer is quite interesting. First of all, it was in 1984 when Michael Dell, a student at the University of Texas at Austin, created the company PC's Limited. He only had a starting capital of $ 1,000. So what he did was started working out of his dorm room to build personal computers made from stock components. These computers were to be IBM compatible because that was the standard at that time. If a computer were to function with various pieces of hardware, it needed to be IMB compatible.

It is when Michael Dell figured that selling computers directly to customers to determine customer need that he dropped out of college. His family then extended him the $ 300,000 in expansion capital that he needed to make his business take off.

A success

It was in 1985 that the Turbo PC was developed and it sold for less than $ 800. It contained an Intel 8088 processor that ran at 8 MHz, which is significantly slower than the computers that we use today. Computers today are running in gigahertz, which are hundreds and even thousands of times faster than the 8 MHz processor that Michael Dell was installing in his computers at the time. But the truth is that this was the best that could be done in 1985. The technology was developing.

But there was an aspect of PC's Limited that was unique from the rest and continues to be this way today. It is the fact that customers could order their computers rather than buy a computer that was already assembled. This allowed individuals to receive computers at lower prices than what they could get with their competitors. This definitely worked because PC's Limited grossed $ 73 million in its first year of trading.

The beginning of Dell

It was in 1988 that PC's Limited became Dell. Prior to that, the company already had 11 international operations occurring, so the company was quite large. There were on site services set up to compensate for the lack of businesses acting as service centers for Dell computers. It was in 1990 that Dell attempted to sell through club houses, but had very little success with this. So it is then that Dell went right back to its direct to customer sales.

In 1996, Dell started selling computers on its website. An individual could go onto the website and custom design their computer so that it would be built to their specifications. From there, it would be shipped to the customer's home. Financing was made available so that individuals would be able to acquire their computers easily.

In 1999, Dell became the largest personal computer seller when they took over Compaq computers. Their revenue topped $ 25 billion in 2002. Also in 2002, Dell started selling televisions and other electronic items. They now have Dell brand printers, LCD TVs, and much more. Because of the expansion beyond computers, Dell was changed to Dell Inc. In 2003.

It is amazing that this billion dollar company started in a dorm room with $ 1000 in starting capital. And Michael Dell has always stood by the principles of letting individuals have the capability to design their own machine. Although there are Dell computers now sold in various retail outlets, a person can still go to the website and design the machine of their dreams. And Dell also offers a lot of assistance for individuals needing help with their computers. They offer on-site services and so much more for the computer user so that they can have the best experience possible.

Posted in general | Comments Off on Who Invented Dell Computers?

The Advantages of Having Personal Productivity Software

Personal productivity software is an application that no business should be without. This is because of the simple fact that this piece of software makes a great contribution when it comes to ensuring productivity in the workplace. But if you are not too convinced about the importance of purchasing personal productivity software just yet, well, this is actually normal. A lot of business men do become wary when presented with the notion of purchasing such software because computer software is a bit pricey in the market right now. However, when presented with the many benefits businesses enjoy with these software applications, the activity of convincing businessmen becomes very, very easy to do.

So, why exactly do you need personal productivity software in running your business? First of all, this piece of software can give any type and size business the professional touch it needs. The software comes with applications and programs that make it very easy for you to produce professional looking letterheads, marketing reports, brochures, mailing campaigns, and the like. Even the simple act of developing professional looking paychecks is easily done with the use of such software as well. And this is just one of the minor benefits that come with such software!

When you get the basic package, you actually get a word processor, a spreadsheet application, presentation software, and the like. For a more cost-efficient option, you could consider getting one of those suites that contain a number of these tools. This way, you are sure to get more value for your money. Some examples of these suites include Microsoft Office, Sun Staroffice 8, Microsoft Works, or Corel WordPerfect Office. An interesting fact about Microsoft Works is that it actually comes free with personal computers. Aside from these suites, you can also choose to get supplementary software packages that can make your whole life easier.

One of the popular software packages includes QuickBooks. This choice is popular because it is known to be very efficient in handling and managing inventory and business finances, such as payroll and benefits packages. Now, with all these abilities, you have to be sure to allot a hefty budget for your suite of tool and the additional applications and programs you would be getting. The typical price for suites and the individual applications range from a hundred to five hundred dollars. So, if your PC is meant for more than just doing the regular email and the basics on word processing, then you should consider this option thoroughly.

You may also be worried about the hidden and recurring fees that might come with having personal productivity software installed in your system. Yes, they do come with long term costs, but these are just minimal when you compare them to the benefits you would come to enjoy with the software. An upgrade would occasionally be needed, especially after a few years or so with your own application suite. Plus, your business should be growing in a few years, right? Thus, it would make much sense to avail of this upgrade, to foster improvement for your company in the business setting. Do not worry too much about upgrade expenses because they would definitely be lower than that of the original purchase.

Posted in general | Comments Off on The Advantages of Having Personal Productivity Software

How to Repair DBF Files by Using DBF Recovery Software

As a computer user you must have heard about a DBF file or some of you have used it. DBF is a database file format used by various database software programs, such as: Visual FoxPro, Clipper, dbFast, CodeBase, MultiBase, dbXL, Arago and similar database programs. A database file is a collection of data organized in a tabular form. A DBF file can be easily opened, edited and saved by any of these database programs therefore, this file format is very popular among computer users.

The most common use of a database file is to store a large amount of data and information. The file is widely used in almost every sector, such as: corporate and educational sectors to store the data and information. It has become an essential file format for an individual and an organization.

Where this file format is very useful for users on the other hand, it may create some serious problems as well. Sometimes a DBF file may become inaccessible or invalid due to corruption. DBF is not immune to corruption; in fact, this file format is prone to corruption due to its large size and complex file structure. It might be easily corrupted due to various reasons, such as: virus attacks, malfunction in database application, hard disk drive failure, software collision, unexpected cancellation of DBF, human errors and many more. These are some common reasons which can play an important role in database file corruption.

While opening a corrupt DBF file you may receive some error messages something like these:

  • “File .dbf does not exist”.
  • “The fields in table did not match the entries in the database”.
  • “Access to table disabled due to previous error”.
  • “Database file appears corrupt: Page is of wrong type.
  • “Corrupt table”/ “index header”.
  • “Filename .dbf has become corrupted”.

These are some common errors which frequently take place at the time of corruption. For example: you are working on your DBF file, everything is fine. But all of a sudden your database application (Visual FoxPro or other) starts hanging. You have no other option other than restarting the system. But when you restart your system and open the same DBF file, in which you were working earlier, it does not open or you get an error message saying the file is corrupted or damaged. This must be very frustrating situation for any user since all the hard work will go into the vain. All the data and information stored in the file might be lost forever. You have to re-create the file, which might not be possible in some cases.

In such critical state a BKF file will definitely help you. If you have backed up the database file (which is now corrupted), then you can easily restore it from the BKF file. But sometimes the BKF file may not be available or corrupted or invalid. In this situation you can use third-party DBF recovery software. This is one of the most efficient and effective solutions to fix corrupt DBF files. The DBF recovery software is designed to repair an extremely corrupted DBF file and to restore maximum data from it. It is highly capable to resolve or fix all the errors from corrupted DBF files. The software supports all popular database applications, such as: dBase III, dBase IV, dBase V, Visual FoxPro, Clipper, dBFast, CodeBase, MultiBase, dBXL and Arago. The best feature of the software is its self-describing user interface. It requires no technical knowledge or skills to use this software. Any tech savvy and a novice user can easily and comfortably use this software to repair corrupted DBF files. The DBF Recovery software is available with free demo version. Users can download the demo version before buying the full software. This helps users to examine the features and performance.

Posted in general | Comments Off on How to Repair DBF Files by Using DBF Recovery Software

Recommended Software for Arena Management

When there is a little over a month left to enter the data for a thousand plus cattle penning teams into a fickle spread sheet software program that was built by good intentioned volunteers; the last thing anyone should be doing is looking for replacement software. However, as any event/entry secretary or producer knows this is sometimes the lifeline that is needed to get the job done.

The preparation of all of the necessary data combined with balancing a three-quarter of a million dollar show in the six weeks prior to its start should have been enough to do. Throwing in a new piece of software to learn and master would be considered ludicrous to say the least. The producers deemed it to be a necessity in view of the history of inconsistencies in the program currently in use.

With a three-year old recommendation in hand and very little back ground checking, Arena Management Software became the chosen lifeline. The software was purchased, loaded onto the computers, played with for a day or so and then our team went to work. The KCI support group was there, day and night, to help with the learning curve and any snags that presented themselves. Our team quickly realized that the new user-friendly software program we had taken a chance on was going to be our ongoing choice for future events. The show was a success. The producers and contestants were happy. All was good in our world!

There have been a lot of years pass by since those short six weeks when our group became acquainted with the Arena Management Software. The program still provides a user-friendly format that has the talent to produce minimal data to realms of reports. From rodeo to cattle penning events the product continues to amaze our team with its ability to perform in and out of the arena.

Posted in general | Comments Off on Recommended Software for Arena Management

Learn How to Fix “Runtime Error 53 File Not Found” Easily

Computer errors generally plague us a lot. They have to be removed immediately before they can cause any further problems. One such error is the run time error 53. It shows the message “runtime error 53 file not found”.

In this error, problem occurs when a software program that is installed on the PC shows this error because it is trying to reach a DLL file that has been removed from the windows registry. This registry contains all the files that are used by Windows for executing any kind of commands by human users. This DLL file might have never been installed on the computer itself.

To fix runtime error 53 from your system, some simple steps have to be followed. Such steps include clicking on the start menu and then landing at the control panel. After you reached the control panel, open the programs and features icon. Open up all the programs stored in the computer through it. Uninstall the program, which produced the run time error 53 message. A window will also open up telling the user that the program has been removed from the system.

To make sure that the DLL file is stored again on the computer, one has to remove the program and then put it back. The program can be reintroduced into the system through a hard disk or a CD. Instructions will appear on the screen as this program gets installed. After clicking on the install it now option, the user will see the option of terms and conditions on the screen. Click on the “I agree” choice to continue with the installation. The operating systems that generally display this error are Windows XP, Windows Vista and Windows 7.

Run the program to ensure that runtime error 53 is not displayed again. If the error is still being produced, then contact the company, which supplied you with the software.

It is also intelligent on your part if you find out about the compatibility of your software with the operating system of your computer or other software. You can find out about this compatibility through an online research. The website of the software developer can also yield you such details. Tell the software developer about the intricacies of your system to get an adequate response from him about the runtime error 53.

However, the last and most easy solution to fix “runtime error 53 file not found” error is using windows registry cleaner software. Registry cleaner software can always eradicate any registry errors produced by wrong entries, which cause a runtime error 53. It can delete all the useless entries in the registry that are causing such an error. Using such software can ensure that you get an error-free system.

Posted in general | Comments Off on Learn How to Fix “Runtime Error 53 File Not Found” Easily

The Advantages of Working With a Software Boutique Company

First of all, a boutique is a small shop where clients can find dedicated merchandise and unique items, or products which are produced in small quantities. The advantage of entering in such a shop, compared to big supermarkets, is that here you’ll also find staff ready to assist you and to give you guidance step by step. Indeed, one may say that a boutique charges higher prices, also in comparison to chain stores, which is definitely true. However, once you bought something from a boutique you’ll have the feeling that you own a unique item, which will differentiate you from the rest, and isn’t this what we all want – to be unique?

Software boutiques are a new way of defining petite software companies which are focused on a certain niche, and which are able to offer specialized support to their customers. Even more, such a firm is able to offer a unique product, tailored on the client’s needs and requirements. But, let’s see what advantages does a customer have when collaborating with a software boutique company:

Tailored product

A software boutique takes the client’s specifications and transforms them into a customized piece of software. Practically, if you are not satisfied by the mass-produced software programs which you can find, then a boutique company will tailor a product according to each and everyone of your requirements. The outcome will be a software product which is able to fit perfectly your company’s needs.

Niche focus

Generally, a boutique company is focused on a certain niche, for example developing applications and software products using Microsoft technologies. The advantage of having such a partner, is that you’ll have the confidence that he has the knowledge and proven experience to offer you the best advices regarding that specific area, and that he’s always updated with the latest technologies.

Crystal clear communication and dedicated support

Having a smaller amount of projects, a boutique software company can offer its clients dedicated support, according to every client’s need through a direct communication flow. This means that the information won’t need to travel through several departments until it reaches you, so that you’ll always be updated with the status and the quality of the work.

A good communication, not only that can save time, but also can make the development process more efficient. For example if you want a specific functionality for your application, collaborating with a boutique firm, you’ll able to keep track of the development process and promptly interfere in the development process if the work isn’t going in the desired direction, or if you want to change the approach. Also, fewer the clients, better the support. Practically, a software boutique will offer you their entire attention and expertise, whenever this is required.

Every client is important

For a boutique company every client is important, and because they can’t afford to lose a client, they can’t really afford to do a bad job. Every development project is treated with care, and you’ll know for sure that your project will be handled by the best men.

Posted in general | Comments Off on The Advantages of Working With a Software Boutique Company

Choosing the Right SDLC For Your Project

Choosing the right SDLC (Software Development Lifecycle) methodology for your project is as important to the success of the project as the implementation of any project management best practices. Choose the wrong software methodology and you will add time to the development cycle. Adding extra time to the development cycle will increase your budget and very likely prevent you from delivering the project on time.

Choosing the wrong methodology can also hamper your effective management of the project and may also interfere with the delivery of some of the project’s goals and objectives. Software development methodologies are another tool in the development shop’s tool inventory, much like your project management best practices are tools in your project manager’s tool kit. You wouldn’t choose a chainsaw to finish the edges on your kitchen cabinet doors because you know you wouldn’t get the results you want. Choose your software methodology carefully to avoid spoiling your project results.

I realize that not every project manager can choose the software methodology they will use on every project. Your organization may have invested heavily in the software methodology and supporting tools used to develop their software. There’s not much you can do in this case. Your organization won’t look favorably on a request to cast aside a methodology and tools they’ve spent thousands of dollars on because you recommend a different methodology for your project. We’ll give you some tips on how to tailor some of the methodologies to better fit with your project requirements later in this article. In the meantime, before your organization invests in software development methodologies you, or your PMO, ought to be consulted so that at least a majority of projects are benefited from a good fit.

This article won’t cover every SDLC out there but we will attempt to cover the most popular ones.

Scrum

Scrum is a name rather than an acronym (which is why I haven’t capitalized the letters), although some users have created acronyms, and is commonly used together with agile software development. Scrum is typically chosen because of its iterative nature and its ability to deliver working software quickly. It is chosen to develop new products for those reasons. There is typically no role for a project manager in this methodology, the 3 key roles are: the scrum master (replacing the project manager), the product owner, and the team who design and build the system. There is only one role that you would be asked to play if your organization is committed to using this methodology, scrum master. If you should determine that this would actually be the best methodology for your project, you’ll have to re-examine your role as project manager. You can either identify a suitable scrum master and return to the bench, or fill the role of scrum master.

Scrum suits software development projects where its important for the project to deliver working software quickly. Scrum is an iterative methodology and uses cycles called sprints, to build a working system. Requirements are captured in a “backlog” and a set of requirements is chosen with the help of the product manager. Requirements are chosen based on 2 criteria: the requirement takes priority over others left in the backlog and the set of requirements chosen will build a functioning system.

During the sprint, which can last from 2 to 4 weeks maximum, no changes can be made to the requirements in the sprint. This is one of the reasons that a project manager isn’t necessary for this methodology. There is no need for requirements management because no changes are allowed to the requirements under development. All changes must occur in the requirements set in the backlog.

Scrum will be suitable for software development projects where the product is a new software product. By new I mean that it is new to the organization undertaking the project, not in general. The methodology was developed to address a need for a method to build software when its necessary to learn on the fly, not all requirements are known to the organization and the focus is on delivering a working prototype quickly to demonstrate capabilities. You need to be careful when choosing requirements to deliver in each sprint to ensure that the set developed builds a software system that is capable of demonstrating the feature set supporting the requirements included.

You also need to ensure that these requirements are well known and understood as no changes are allowed once the sprint starts. This means that any changes to the requirements must come through a new set of requirements in the backlog making changes to these requirements very expensive.

This methodology divides stakeholders into 2 groups: pigs and chickens. The inventors of this methodology chose this analogy based on the story of the pig and the chicken – it goes something like this. A pig and a chicken were walking down the road one morning and happened to notice some poor children who looked like they hadn’t eaten for days. The compassionate chicken said to the pig: “Why don’t we make those children a breakfast of ham and eggs?” The pig said: “I’m not happy with your suggestion. You’re just involved in making the breakfast, I’m totally committed!” The point to this is the product owner, scrum master, and team are all in the “pig” group. All others are in the “chicken” group. You will be in the “chicken” group if you choose the Scrum methodology as a project manager.

Waterfall

Waterfall methodology calls for each phase of the development cycle to be repeated once only. Requirements will be gathered and translated into functional specifications once, functional specifications will be translated to design once, designs will be built into software components once and the components will be tested once. The advantage of this methodology is its focus. You can concentrate the effort of all your analysts on producing functional specifications during one period rather than have the effort dispersed throughout the entire project. Focusing your resources in this way also reduces the window during which resources will be required. Programmers will not be engaged until all the functional specifications have been written and approved.

The disadvantage of this approach is its inability to teach the project team anything during the project. A key difference between the waterfall approach and an iterative methodology, such as Scrum or RUP, is the opportunity to learn lessons from the current iteration which will improve the team’s effectiveness with the next iteration. The waterfall methodology is an ideal methodology to use when the project team has built software systems very similar to the one your project is to deliver and has nothing to learn from development that would improve their performance. A good example of a project which would benefit from the waterfall methodology is a project to add functionality to a system the project team built in the not too distant past. Another example of an environment that is well suited to the waterfall methodology is a program to maintain a software system where a project is scheduled for specific periods to enhance the system. For example, an order and configuration software system which is enhanced every 4 months.

The waterfall methodology does not lend itself particularly well to projects where the requirements are not clearly understood at the outset. Iterative approaches allow the product owners or user community to examine the result of building a sub-set of requirements. Exercising the sub-set of requirements in the iteration’s build may cause the product owners or user community to re-examine those requirements or requirements to be built. You won’t have that opportunity with the waterfall method so you need to be certain of your requirements before you begin the build phase. Interpreting requirements into functionality is not the only aspect of development that can benefit from an iterative approach. Designing the system and building it can also benefit from doing these activities iteratively. You should use the waterfall method when your team is familiar with the system being developed and the tools used to develop it. You should avoid using it when developing a system for the first time or using a completely new set of tools to develop the system.

RUP

The Rational Unified Process, or RUP, combines an iterative approach with use cases to govern system development. RUP is a methodology supported by IBM and IBM provides tools (e.g. Rational Rose) that support the methodology. RUP divides the project into 4 phases:

1. Inception phase – produces requirements, business case, and high level use cases

2.Elaboration phase – produces refined use cases, architecture, a refined risk list, a refined business case, and a project plan

3. Construction phase – produces the system

4. Transition phase – transitions the system from development to production

RUP also defines 9 disciplines: 6 engineering disciplines, and 3 supporting disciplines: Configuration and Change Management, Project Management, and environment so is intended to work hand in hand with project management best practices.

Iteration is not limited to a specific project phase – it may even be used to govern the inception phase, but is most applicable to the construction phase. The project manager is responsible for an overall project plan which defines the deliverables for each phase, and a detailed iteration plan which manages the deliverables and tasks belonging to each phase. The purpose of the iterations is to better identify risks and mitigate them.

RUP is essentially a cross between Scrum and waterfall in that it only applies an iterative approach to project phases where the most benefit can be derived from it. RUP also emphasizes the architecture of the system being built. The strengths of RUP are its adaptability to different types of projects. You could simulate some of the aspects of a Scrum method by making all 4 phases iterative, or you could simulate the waterfall method by choosing to avoid iterations altogether. RUP will be especially useful to you when you have some familiarity with the technology but need the help of Use Cases to help clarify your requirements. Use Cases can be combined with storyboarding when you are developing a software system with a user interface to simulate the interaction between the user and the system. Avoid using RUP where your team is very familiar with the technology and the system being developed and your product owners and users don’t need use cases to help clarify their requirements.

RUP is one of those methodologies that your organization is very likely to have invested heavily in. If that’s your situation, you probably don’t have the authority to select another methodology but you can tailor RUP to suit your project. Use iterations to eliminate risks and unknowns that stem from your team’s unfamiliarity with the technology or the system, or eliminate iterations where you would otherwise use the waterfall method.

JAD

Joint Application Development, or JAD, is another methodology developed by IBM. It’s main focus is on the capture and interpretation of requirements but can be used to manage that phase in other methodologies such as waterfall. JAD gathers participants in a room to articulate and clarify requirements for the system. The project manager is required for the workshop to provide background information on the project’s goals, objectives, and system requirements. The workshop also requires a facilitator, a scribe to capture requirements, participants who contribute requirements, and members of the development team whose purpose is to observe.

JAD can be used to quickly clarify and refine requirements because all the players are gathered in one room. Your developers can avert misunderstandings or ambiguities in requirements by questioning the participants. This method can be used with just about any software methodology. Avoid using it where the organization’s needs are not clearly understood or on large, complex projects.

RAD

RAD is an acronym for Rapid Application Development uses an iterative approach and prototyping to speed application development. Prototyping begins by building the data models and business process models that will define the software application. The prototypes are used to verify and refine the business and data models in an iterative cycle until a data model and software design are refined enough to begin construction.

The purpose of RAD is to enable development teams to create and deploy software systems in a relatively short period of time. It does this in part by replacing the traditional methods of requirements gathering, analysis, and design with prototyping and modeling, the prototyping and modeling allow the team to prove the application components faster than traditional methods such as waterfall. The advantage of this method is it facilitates rapid development by eliminating design overhead. It’s disadvantage is that in eliminating design overhead it also eliminates much of the safety net which prevents requirements from being improperly interpreted or missed altogether.

RAD is suitable for projects where the requirements are fairly well known in advance and the data is either an industry or business standard, or already in existence in the organization. It is also suitable for a small development team, or a project where the system can be broken down into individual applications that require small teams. RAD is not suitable for large, complex projects or projects where the requirements are not well understood.

LSD

Lean Software Development, or LSD, applies the principles of waste reduction from the manufacturing world to the business of developing software. The goal of LSD is to produce software in 1/3 the time, on 1/3 the budget, and with 1/3 the defects of comparable methods. Lean does this by applying 7 principles to the endeavor of software development:

1. Eliminate waste

2. Amplify Learning (both technical and business)

3. Decide on requirements as late as possible

4. Deliver as fast as possible

5. Empower the team

6. Build integrity

7. See the whole

Although Lean Manufacturing has been around for some time, its application to the process of developing software is relatively new so I wouldn’t call it a mature process.

LSD would be a suitable method to use where you have a subject matter expert in the method who has some practical experience in applying lean methods to a software development project. “Amplified” learning implies that your development team has a depth of knowledge in the software tools provided, and also a breadth of knowledge that includes an understanding of the business needs of the client. LSD would be suitable for a project where the development team has these attributes.

LSD depends on a quick turnaround and the late finalization of requirements to eliminate the majority of change requests, so will not be suitable for a project where a delayed finalization of requirements will have a poor chance of eliminating change requests, or the size and complexity of the system being developed would prevent a quick turnaround.

Extreme Programming (XP)

Extreme programming places emphasis on an ability to accommodate changes to requirements throughout the development cycle and testing so that the code produced is of a high degree of quality and has a low failure rate in the field. XP requires the developers to write concise, clear, and simple code to solve problems. This code is then thoroughly tested by unit tests to ensure that the code works exactly as the programmer intends and acceptance tests to ensure that the code meets the customer’s needs. These tests are accumulated so that all new code passes through them and the chances for a failure in the field are reduced.

XP requires the development team to listen carefully to the needs and requirements of the customer. Ambiguities will be clarified by asking questions and providing feedback to the customer which clarifies the requirements. This ability implies a certain degree of familiarity with the customer’s business; the team will be less likely to understand the customer’s needs if they don’t understand their business.

The intent of XP is to enhance coding, testing, and listening to the point where there is less dependency on design. At some point it is expected that the system will become sufficiently complex so that it needs a design. The intent of the design is not to ensure that the coding will be tight, but that the various components will fit together and function smoothly.

XP would be a suitable software development method where the development team is knowledgeable about the customers business and have the tools to conduct the level of testing required for this method. Tools would include automated unit testing and reporting tools, issue capture and tracking tools, and multiple test platforms. Developers who are also business analysts and can translate a requirement directly to code are a necessity because design is more architectural than detail. This skill is also required as developers implement changes directly into the software.

XP won’t be suitable where the development team does not possess business analysis experience and where testing is done by a quality assurance team rather than by the development team. The method can work for large complex projects as well as simple smaller ones.

There is no law that states you must choose one or the other of these methodologies for your software project. The list I’ve given you here is not a totally comprehensive list and some methodologies don’t appear on it (e.g. Agile) so if you feel that there is some other methodology that will better suit your project, run with it. You should also look at combining some of the features of each of these methods to custom make a methodology for your project. For example, the desire to eliminate waste from the process of developing software is applicable to any method you choose and there is likely waste that could be eliminated in any development shop.

Be careful to choose a methodology that is a good fit for your team, stakeholders, and customer as well as your project. Bringing in a new development methodology that your team will struggle to learn at the same time they are trying to meet tight deadlines is not a good idea. On the other hand, if you have the latitude you may want to begin learning a new method with your project.

Posted in general | Comments Off on Choosing the Right SDLC For Your Project