Technical debt: a time related issue

According to Wikipedia, Technical Debt refers to the eventual consequences of poor software architecture and software development within a codebase. The debt can be thought of as work that needs to be done before a particular job can be considered complete. If the debt is not repaid, then it will keep on accumulating interest, making it hard to implement changes later on. Unaddressed technical debt increases software entropy.

So, technical debt is creating a solution that is not complying to the architecture or detailed design. The reason for this is most of the time lack of time. In some circumstances, shortcuts are needed in order to deliver a project on time. This is not necessarily bad – there can be good economic, commercial or political reasons for this. Such a shortcut is known as technical debt.

Technical debt can be compared to Development without architecture, as described in the DYA architecture method. I posted an article about this some time ago. Technical debt must be “paid back”; the chosen shortcut solution must be temporarily by definition and the definitive solution – according to the architecture – must be built eventually. This means that besides the extra effort to run the solution in the suboptimal way, money must be reserved to build the definitive solution. Preferably, building the definitive solution should be started immediately – in parallel with building the technical debt.

I think technical debt can very well be extended to include infrastructure technical debt, or solution architecture technical debt for that matter. Just like technical debt can occur in software, it can be interoduced in infrastructures as well. Such technical debt can be introduced by creating an infrastructure solution that is deviating from the defined infrastructure architecture. This deviation can lead to additional cost, for instance in terms of increased systems management effort, replacing hardware before the economic life span is reached, or temporarily using additional software licenses.

Nobody likes technical debt. It is a temporary solution to a problem that needs to be solved anyway. The only real reason for creating technical debt is time constraints. If enough time is available, it is always best to create the definitive solution right away. But because of time constraints, extra money is spent creating a temporarily solution quickly, and redo it later. It must be understood by the stakeholders that by creating technical debt, they are actually paying extra for their impatience.


This entry was posted on Saturday 28 June 2014

Earlier articles

My Book

DevOps for infrastructure

Infrastructure as a Service (IaaS)

(Hyper) Converged Infrastructure

Object storage

Software Defined Networking (SDN) and Network Function Virtualization (NFV)

Software Defined Storage (SDS)

What's the point of using Docker containers?

Identity and Access Management

Using user profiles to determine infrastructure load

Public wireless networks

Supercomputer architecture

Desktop virtualization

Stakeholder management

x86 platform architecture

Midrange systems architecture

Mainframe Architecture

Software Defined Data Center - SDDC

The Virtualization Model

What are concurrent users?

Performance and availability monitoring in levels

UX/UI has no business rules

Technical debt: a time related issue

Solution shaping workshops

Architecture life cycle

Project managers and architects

Using ArchiMate for describing infrastructures

Kruchten’s 4+1 views for solution architecture

The SEI stack of solution architecture frameworks

TOGAF and infrastructure architecture

The Zachman framework

An introduction to architecture frameworks

How to handle a Distributed Denial of Service (DDoS) attack

Architecture Principles

Views and viewpoints explained

Stakeholders and their concerns

Skills of a solution architect architect

Solution architects versus enterprise architects

Definition of IT Architecture

What is Big Data?

How to make your IT "Greener"

What is Cloud computing and IaaS?

Purchasing of IT infrastructure technologies and services

IDS/IPS systems

IP Protocol (IPv4) classes and subnets

Infrastructure Architecture - Course materials

Introduction to Bring Your Own Device (BYOD)

IT Infrastructure Architecture model

Fire prevention in the datacenter

Where to build your datacenter

Availability - Fall-back, hot site, warm site

Reliabilty of infrastructure components

Human factors in availability of systems

Business Continuity Management (BCM) and Disaster Recovery Plan (DRP)

Performance - Design for use

Performance concepts - Load balancing

Performance concepts - Scaling

Performance concept - Caching

Perceived performance

Ethical hacking

The first computers

Open group ITAC /Open CA Certification

Sjaak Laan


Recommended links

Ruth Malan
Gaudi site
Byelex
XR Magazine
Esther Barthel's site on virtualization


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The postings on this site are my opinions and do not necessarily represent CGI’s strategies, views or opinions.

 

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