Stop Planning & Start Harmonizing Implementations

November 2, 2013

You can wait for that dream initiative or project to build a whole new set of reusable components that will magically make your teams more productive. The only issue is – it is highly likely that it will be just that – a dream. Instead of planning for systematic reuse, start executing on it by taking a few simple steps. Ask yourself the following questions:

1. Are you capitalizing on identifying and sharing common components with your department / team?

2. Is every project encouraged to continuously refactor and harmonize classes for reducing redundancies? If not, why not?

3. Do you have code that caters to common infrastructural concerns – logging, exception management, alerting, monitoring, metrics.? If yes, is their reuse mandated via common framework hooks that your developers are already using? If not, what is preventing adoption of these concerns into your development stack? Ask your developers and listen to their concerns – you will need to unearth and attack the root causes behind reuse barriers.

4. Do you utilize ad-hoc, informal pairing and code review sessions to identify and harmonize similar / duplicate / redundant classes? If you review code the first time before a project go-live, odds are you either will regret missed opportunities or bemoan the lack of time within your development cycle for making improvements. Key is to intervene early and often and front load your investments for systematic reuse

5. How do you ensure reafactoring to reuse opportunities are tracked? do you create improvement tickets and action them on a best-effort basis or are they managed as part of the product backlog of things that have to get done? If its the former, it will be difficult to make much progress. Creating and tracking tickets will will provide visibility – however, for you to make tangible progress in acting on them you need to partner with developers and development managers to action work on an ongoing basis.

These are just example questions to help you get your journey started and it should be abundantly clear that discipline and continuous alignment is key. If you don’t do anything else, just force your team to converge on a common implementation on key functionality. You will be surprised what discipline can deliver.

Why do we fear Continuous Refactoring?

April 22, 2010

There are so many reasons why continuously refactoring code is a good idea – in fact, it is a sound investment for the overall health of your codebase. So, what could be some reasons why we fear doing refactorings? what could be the impediments to making changes?

In my experience, the #1 reason why developers fear refactoring is the lack of automated regression tests. This is why Martin Fowler emphasizes the need for tests prior to pursuing refactorings in his seminal book Refactoring. Without a comprehensive suite of tests, developers cannot be confident that changes to the code didn’t break existing functionality and it didn’t introduce new defects.

There are other reasons as well for fearing refactoring:

  • Not enough time during development – this is such an often repeated reason for a variety of issues 🙂 Here is the rub though: we learn most about the domain and the limitations of existing code with experience. This tends to happen at the “end” of an iteration or release cycle. Naturally, we don’t want to jeopardize our release to do refactorings. This is precisely why agile advocates the notion of continuous refactoring iteration after iteration. Your code reflects the state of the software (and the associated knowledge of the domain) at a snapshot in time. It is a work-in-progress – remaining that way till the product ceases to exist or be maintained.
  • Lack of disciplined effort to translate new domain knowledge into existing code. As a project proceeds, developers learn more about the domain and the gaps in their knowledge with respect to the domain. These gaps typically manifest themselves in various forms: needless abstractions, insufficient flexibility with known variations in the domain, and lack of domain-relevant concepts being modeled as first-class citizens.
  • Insufficient knowledge on using refactoring tools (e.g. using an IDE such as Eclipse, there are a plethora of refactorings can be implemented rapidly).
  • Lack of knowledge about refactoring tactics – moving methods, creating interfaces, replacing if..then logic etc. – that are necessary to keep a tidy, effective codebase
  • Unwillingness to improve the codebase on a continuous basis 🙂

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