“Everything should be made as simple as possible, but no simpler.”
This is one of the great quotes in science. Coming from Einstein, who simplified physics into general relativity, it is a great statement of how to conduct science.
I named it not-yet-scrum because I think the Scrum methodology is too much
for developing software projects (even large scale projects).
We won't focus on gathering comprehensive documents (as Agile says). Instead, the only information developer needs to implement a feature is a small bit of product specification which describes the whole definition of the feature (aka User Story). It helps us keep documents fresh and update them frequently as needed without worrying about outdating them.
Here I mentioned some tools and technologies because I believe the
tools-matter rule and choosing them based on simplicity and productivity
will result in positive effects on the progress.
Any format other than text is not accepted for information at all.
Example list of not acceptable formats:
- Images
- Formatted text documents such as
MSWord,Excel,Google-doc,LibreOffice Writeretc ...
Example list of acceptable formats:
- reStructuredText
- Markdown
- Plain text
Daily meetings are overkill. As you know, many open-source projects are done and or in progress without daily meetings. I think daily stand-up meetings are outdated.
I think a good (descriptive) Nugget (see below) and 1:1 meetings are enough to interact with any developer.
Nugget is what we deliver to developers to describe them what to do.
A Nugget May consist of:
- User Story
- BDD specification
- TDD definition which describes the exact input and output of the feature and or API.
- Wireframe
- GUI prototype
- One or more test case(s)
NOTE
There is no other information allowed to deliver to developers other than the list above.
here is an example of
Nugget.
All tests should meet the BDD standards:
Feature: User trades stocks
Scenario: User requests a sell before close of trading
Given I have 100 shares of MSFT stock
And I have 150 shares of APPL stock
And the time is before close of trading
When I ask to sell 20 shares of MSFT stock
Then I should have 80 shares of MSFT stock
And I should have 150 shares of APPL stock
And a sell order for 20 shares of MSFT stock should have been executed
Check here for more info about the BDD scenario.
This an example of how I save the BDD skeleton in test files to increase readability using the bddrest.
with Given(
'Creating an organization.',
'/apiv1/organizations',
'CREATE',
form=dict(title=title)
):
assert status == 200
assert response.json['title'] == title
assert response.json['logo'] is None
assert response.json['url'] is None
assert response.json['domain'] is None
assert response.json['createdAt'] is not None
assert response.json['modifiedAt'] is None
when(
'Organization is already exist',
form=dict(title='organization-title')
)
assert status == '600 Repetitive Title'
when(
'Title is invalid',
form=dict(title='my organ')
)
assert status == '747 Invalid Title Format'| Problem | Solution | Why |
|---|---|---|
| Version Control | GIT | Kidding Me? |
| Remote repository | Github | Simple, Free private repos, Powerful CI/CD, Issue tracking |
| Issue tracking & Kanban | Github | Simplicity & Integrity |
| Main Language(s) | Python, C, GoLang and any portable language | Ease of develop and useful tools for BDD |
| IDE | Vim | Productivity |
| Platform | Any POSIX | Portability |
I folow the Nomanclature for the naming purpose.
Code coverage is most important factor. the first commit comes with 100%
code coverage and should not descerased even .0000001% with any commit and
or pull request.
DIAGRAM: Nugget flow
author: Vahid Mardani
version: 1.0
+---------------+ +-----------------+ +-----------------+ +---------+ +-----------+ +---------+
| Product Owner | | Product Manager | | Technical Chef | | UX & UI | | Developer | | QA & QC |
+---------------+ +-----------------+ +-----------------+ +---------+ +-----------+ +---------+
| | | | | |
|~~~Epic(Travel to the Moon)~~~>| | | | |
| |~~~Story(Moon landing)~~>| | | |
| | | | | |
| | ******************************************** | |
| | * if Design needed? * | |
| | ******************************************** | |
| | | | | |
| | |~~~Desing(Nugget)~~~~~~~~~~>| | |
| | | | | |
| | |<--Wireframe & Prototype----| | |
| | | | | |
| | ******************************************** | |
| | * end if * | |
| | ******************************************** | |
| | | | | |
| | ---------------------------------------------------------- |
| | | Note: | |
| | | | |
| | | The Nugget may be split into two or more Nuggets. | |
| | ---------------------------------------------------------- |
| | | | | |
| | |~~~Nugget~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~>| |
| | | | |~~~Test(Feature)~~~>|
| | | | | |
| | | | *********************************
| | | | * while Need more work? *
| | | | *********************************
| | | | | |
| | | | |<~~Feedback~~~~~~~~~|
| | | | | |
| | | | |------------------->|
| | | | | |
| | | | *********************************
| | | | * end while *
| | | | *********************************
| | | | | |
| | | | |<--Confirm----------|
| | |<--Pull Request--------------------------| |
| |<--Release---------------| | | |
|<--Working feature-------------| | | | |
| | | | | |
+---------------+ +-----------------+ +-----------------+ +---------+ +-----------+ +---------+
| Product Owner | | Product Manager | | Technical Chef | | UX & UI | | Developer | | QA & QC |
+---------------+ +-----------------+ +-----------------+ +---------+ +-----------+ +---------+
The above diagram is generated by adia from this source file which is a good example of how I deal with diagrams.
diagram: Nugget flow
version: 1.0
author: Vahid Mardani
sequence:
po.title: Product Owner
pm.title: Product Manager
dev.title: Developer
tc.title: Technical Chef
qa.title: QA & QC
uix.title: UX & UI
po -> pm: Epic(Travel to the Moon) -> Working feature
pm -> tc: Story(Moon landing) -> Release
if: Design needed?
tc -> uix: Desing(Nugget) -> Wireframe & Prototype
@tc ~ dev: |
Note:
The Nugget may be split into two or more Nuggets.
tc -> dev: Nugget -> Pull Request
dev -> qa: Test(Feature) -> Confirm
while: Need more work?
qa -> dev: Feedback
- Beautiful is better than ugly.
- Explicit is better than implicit.
- Simple is better than complex.
- Complex is better than complicated.
- Flat is better than nested.
- Sparse is better than dense.
- Readability counts.
- Special cases aren't special enough to break the rules.
- Although practicality beats purity.
- Errors should never pass silently.
- Unless explicitly silenced.
- In the face of ambiguity, refuse the temptation to guess.
- There should be one-- and preferably only one --obvious way to do it.
- Although that way may not be obvious at first unless you're Dutch.
- Now is better than never.
- Although never is often better than right now.
- If the implementation is hard to explain, it's a bad idea.
- If the implementation is easy to explain, it may be a good idea.
- Namespaces are one honking great idea -- let's do more of those!
from Wikipedia, the free encyclopedia
In software engineering, SOLID is a mnemonic acronym for five design principles intended to make software designs more understandable, flexible, and maintainable. The principles are a subset of many principles promoted by American software engineer and instructor Robert C. Martin, first introduced in his 2000 paper Design Principles and Design Patterns.
The SOLID acronym was introduced later, around 2004, by Michael Feathers.
There should never be more than one reason for a class to change.
In other words, every class should have only one responsibility.
Software entities ... should be open for extension, but closed for modification.
Functions that use pointers or references to base classes must be able to use objects of derived classes without knowing it.
See also design by contract.
Many client-specific interfaces are better than one general-purpose interface.
Depend upon abstractions, [not] concretions.
Although the SOLID principles apply to any object-oriented design, they can also form a core philosophy for methodologies such as agile development or adaptive software development.