Today we are going to talk about the varietyof approaches to the software development process.
As you may know, the project development startsoff with choosing an appropriate software development methodology.
So, how do you decide which one fits yourproject needs best? This is actually why we are all here.
In today's topic, we are going to discuss5 different developmental philosophies and how to choose the best one especially foryou.
First of all let's clear out what softwaremethodology means.
You can call it software development methodology,or a software development process, but it will always mean the same thing -splittingsoftware and building work into different stages with certain activities for the purposeof more effective planning and management.
So what are these stages? Well, they are requirements, design, implementation,testing, debugging, deployment, and maintenance.
Usually, all of them are present in any typeof methodology.
But the stages can be mixed up in many waysand this makes the difference.
There are numerous software development methodologiessuch as Waterfall, Cleanroom, Rapid Application Development, Team Software Process , PersonalSoftware Process, Scrum, Kanban, Extreme Programming, and dozens of other.
After years of experience we have formed outour own opinion on the methodologies’ efficiency and have chosen 5 of them to use in our weband app development process.
And today we want to tell you about them.
Let’s start with Waterfall.
The waterfall or traditional methodology isa software development process flowing steadily downwards through the stages of "conception,initiation, analysis, design, construction, testing, production, and maintenance".
Although one may call this methodology obsolete,it's still widely used among developers.
It suits pretty good for a small applicationwith clear-cut instructions which needs about 100 hours for its implementation.
But if you suspect that you may have a lotof changes in your product, this methodology becomes very clumsy.
Scrum is the complete opposite of Waterfall.
It's an agile iterative development strategywhich suits huge projects perfectly.
The workflow is organized in a way that top-prioritytasks are implemented first.
All the process is divided into iterations,called Sprints, which usually last for 2-4 weeks.
Thanks to such a workflow you can get a readyto use product or a piece of functionality at the end of each Sprint.
Scrum allows changes to a product's requirementseven at terminal stages of development, which may save your time and money.
It is perfect for heavyweight projects withunclear requirements and constantly emerging changes to a plan.
Kanban is one more example of agile methodology.
However, it differs a lot from Scrum.
The main priority is given to milestones ratherthan velocity, the progress here is visual, illustrating each stage of work.
In Kanban, the team is only focused on thework which is currently in progress.
After finishing one task, it picks up anotherfrom the top of the backlog.
Each task is estimated according to how muchtime it takes starting from its initiation till the moment it's shipped.
Using such a cycle metric the team can planand predict the product’s delivery pretty clearly.
Kanban is good for complex projects with rapidlyemerging changes to requirements.
It can be really cost-saving if you have anexperienced team for your project.
The next approach we want to tell you aboutis Scrumban.
As its name shows, Scrumban is a combinationof the two previous philosophies.
Some teams try to blend the ideas from thesetwo for maximum efficiency, such as the fixed length iterations and roles from Scrum, andcycle time with the focus on the work in progress from Kanban.
The main advantages of this methodology are:minimal planning an estimation of the team members, and teamworkin general which accelerates the development processlittle daily meetings that allow to find problems immediatelyretrospective practice which allows to learn from your mistakes and achievements Scrumban is a little more expensive than clearKanban but still cheaper than pure Scrum because of its shorter iterations and faster productdelivery.
This mixed methodology is a good choice forcomplex projects if saving money is not your main priority.
The last one for today is XP or extreme programming.
As its name hints, this methodology is usedto develop a high-quality software in a shaky environment.
All the beneficial practices from traditionalsoftware development are taken to an extreme level here.
Twice more code reviews and more human resourcesto provide the pair-coding are used to deliver an excellent quality product within this methodology.
You will surely get a great product, but itmay take you longer because of more often reviews and cost you much more because ofbigger ammount of specialists.
But, XP is undeniably great for complex solutions.
Well, we hope that now all these terms arenot just words for you and you got a clearer picture on the topic! For deeper understanding, read the articleat our Cleveroad Blog.
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