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What is Software Development Lifecycle?

SDLC (Software development lifecycle) contains main phases, that any software goes through on its way to release. Every software has it own unique tasks, difficulty, methodologies so on; but the main phases are mostly common to everyone, and can contain:

Planning the system

Phase of planning is crucial part of work, when you decide, what project will look like in the end. You must define problems and tasks you will face, plan your goals and resources (personnel, spendings and so on). You can also think about alternative ways, cooperation with clients, and compare your software with the main competitors. In other words, you must create the project's concept, define its boundaries and make all the planning documentation.

When the phase is done, you can choose between three options - to make a brand new system, to upgrade existing, or to keep it as it is.

2. Analyzing the system

Next you need to analyze your user needs, and define all what can help you to achieve those needs. Also, it's time when project's technical documentation is prepared, analyzing its organisation, economical, social and technical perspectives and possibilities. You need to be in contact with clients, in order to make what they really want.

3. Designing the system

This phase starts only when you fully understand what your client wants from you. Here you choose all the elements and components of the future system, security level, modules, architecture, different interfaces and data types, that will be used by software. Design can be created just by writing it on the paper; but having such powerful tools as Raduga, you can do it much easier. Especially good Raduga becomes when you need to create extended design document, where all the functional and technical requirements will be sorted, both logically and physically.

4. Development, implementation and deployment

That goes when you already decided all about technical and system requirements and specifications. That is the process of coding as it is, when you can make reality all what is already described and planned in previous phases.

It's phase of not only coding, but also configuration and setting your hardware for the needs and functions of the project. That's time when the project is ready for being shown to the client, and for its test launch. That phase can be pretty long, if the system is complicated. But it's better to make it longer, not less qualitative, because final users must fully understand how to use it.

5. Testing and integration

Here all the components and subsystems are combined into one united system. Then it receives different commands, and you must analyze how the system reactions on them, how it function and what it does in all possible situations. Testing is something that helps make the product complete, taking away all the remaining problems. Tester don't need to be qualified in coding or design, so it can be anyone - user or even automatised system itself. Goal of such a work is to check, how the programs work corresponds with what it must to do.


6. System's maintenance

Finally, when the most work is done, you must ensure regular technical maintenance of the project, verifying that the system is still in a good shape, and shall always be. Here goes the change of the outdated elements and checking performance. Also, security system must be updated time to time, ensuring high quality of the project.

Just just one of the ways how to systemize development cycle, that goes again and again for every project, from start to the end. Cycles can be different, but what is crucial can be found in every one. Most important task is to keep contact with clients, make prototypes, work step-by-step, and save time and energy by creating full-scale design-documents.

Using Raduga, it all is easier than ever before. If you work with the Oracle, or any other platform - then Raduga will help you to organize all the cycle.