Seven Principles of Software Development

The first principle: The Reason It All Exists

A software system consists of one reason: to provide added value for its customers. All decisions should be made to that effect. Prior to the establishment of a system requirement, before noting a piece of the functionality of the system before determining the hardware platforms or development processes, ask yourself questions like: “This has a real added value for the system?” If the answer is “no”, do not. All other principles support that instead.

The second principle: KISS (Keep It Simple, Stupid!)

Software design is not a haphazard process. There are many factors to consider in a constructive effort. All design should be as simple as possible, but not simpler. This allows having an easily readable and easily maintained system. This is not to say that features, even internal functions should be discarded in the name of simplicity. In fact, the more elegant designs are usually more simple. Simple does not mean “quick and dirty.” In fact, it often takes a lot of thought and work to simplify over several iterations. The payoff is a software that is more maintainable and less error prone.

The third principle: Maintain the Vision

A clear vision is vital for the success of a software project. Without one, a project that almost inevitably ends up as “two [or more] minds” about themselves without conceptual integrity, threat of a system into a patchwork of incompatible designs, coupled with the wrong kind of screws hold. As Brooks says:

Conceptual integrity is the most important consideration in system design.

Consume the fourth principle: What You Produce, shall include

Rarely has an industry-strength software system is constructed and used in a vacuum. In one way or another to use someone else to wait, depending on the document or otherwise be able to understand your system. So enter, always know design and implementation, to understand someone else, what you do. The audience for each product, the Software Development is potentially large. Enter with a view to the user. Design to keep the players in mind. Code with concern for those who maintain and expand the system needs. Someone, you need the code that you write, debug, and that makes a user of the code. If it’s easier for that work adds value to the system.

The fifth principle: Be open to the future

A system with a long life has more value. In today’s computing environments, where specifications change on a moment and hardware platforms obsolete, if only for a few months old, software usually measured in months instead of years maturities. However, true “industrial-strength” software systems endure much longer. To do this successfully, these systems must be prepared to adapt to these and other changes. Systems that manage it are those that have been designed in this way from the beginning. Never design yourself into a corner. Always ask, “what if”, and for all possible responses by the creation of systems to solve the general problem, not only to prepare the specific rules. This could very likely lead to the fact that the reuse of the entire system.

The sixth principle: Plan Ahead for Reuse

Reuse saves time and effort. Achieving a high level of reuse is probably the hardest target to achieve for the Web Development Company. The reuse of code and design has been proclaimed as a major advantage of object-oriented technologies. But the return on this investment is not automatic. To require the leverage of reuse opportunities that OO programming has foresight and planning. There are many techniques for reuse at all levels of the system to realize the development process. The detailed on the design and code level are well known and documented. New literature is concerned with the reuse of design in the form of software patterns. However, this is only part of the struggle. Communicating ways to reuse for others in the organization is of utmost importance. As you can reuse something that you do not know are there? Plan ahead for reuse reduces costs and increases the value of the two reusable components and systems that are built into them.

The seventh principle: Think!

This last principle is probably the most overlooked. Placing clear, complete thought before action is almost always better results. If you think about something, you are more likely to make it right. You can also obtain knowledge on how to do it right again. When you think of something and still do wrong, it’s valuable experience. A side effect of thinking is learning to recognize when you don t know something, at which point you can research the answer. If clear thought has gone into a system, comes from value. The application of the first six principles requires intense thought, which are the potential benefits enormous.

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