software development: trends in programming

7/23/2019 Software Development: Trends in Programming

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2015 COWAN+

SOFTWARE DEVELOPMENTKEY TRENDS

Alex Cowan


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THE MVC- A STRONG FOUNDATION CONCEPT


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A SIMPLIFIED VIEW OF HOW THINGS TALK

CLIENT SERVER

clients makerequests

servers respondto requests

01

02


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CREATING SOFTWARE

Writing Software !Spending Money

Minimize Software Subject to User Experience

Corollary: If the software is really needed for any kind of scale,its probably worth doing well

(since most cost accrues over the long run)


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A SIMPLIFIED VIEW OF CERTAIN COST DRIVERS

SW Cost

Drivers

Amount of

Custom

Software

Quality of inputs (user stories, comps, wireframes, testing)

Availability of talent with relevant experience

Quality of available tools & environments

Quality of inputs for focal test development

How often stuff breaks

Availability/ability to leverage automation

Quantity of HW, OS, apps to manage

Availability of documentation/notes

Quality of configuration and logging facilities

Dev.

QA

Ops.


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2015 COWAN+

A SIMPLIFIED VIEW OF CERTAIN COST DRIVERS

Amount of

Custom

Software

Quality of inputs (user stories, comps, wireframes, testing)

Availability of talent with relevant experience

Quality of available tools & environments

Quality of inputs for focal test development

How often stuff breaks

Availability/ability to leverage automation

Quantity of HW, OS, apps to manage

Availability of documentation/notes

Quality of configuration and logging facilities

Dev.

QA

Ops.

Make sure thecurrent valueproposition reallyrequires software

Min(SW)s.t. UX

SW Cost

Drivers


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A SIMPLIFIED VIEW OF MAKING GOOD CHOICES

A. ID & describe your building blocksB. Review building blocks holistically

C. Get the right advice & decide


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ROLES

DEV QA

OPS

Inputs: User stories, wireframes, etc.

Outputs: Software design &

implementation

Inputs: Working software, notes

on function

Outputs: Validated test plans

Inputs: Validated software, notes

Outputs: Working systems, monitoring &

analytics thereof


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ROLES

DEV QA

OPS

DEV-OPS


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A SIMPLIFIED VIEW OF WHATS WHAT

{libraries with helper functions}

{technology you are developing}

{Java, PHP, Ruby on Rails...}

{Linux, Unix, MSFT Server...}

{Storage, CPU, Memory...}

YOUR SOFTWARE

HELPER PACKAGES

FOUNDATION PACKAGES

OPERATING SYSTEM

HARDWARE


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YOUR SOFTWARE

HELPER PACKAGES

FOUNDATION PACKAGES

OPERATING SYSTEM

HARDWARE


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YOUR SOFTWARE

HELPER PACKAGES

FOUNDATION PACKAGES

OPERATING SYSTEM

HARDWARE

{third party applications}

APPS FROMAPP STORE


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A SIMPLIFIED VIEW OF WHATS WHAT: CLASS SITE






YOUR SOFTWARE

HELPER PACKAGES

FOUNDATION PACKAGES

OPERATING SYSTEM

HARDWARE

WP Engine

Platform

PHP

Wordpress

(various plug-ins)


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2015 COWAN+

LANGUAGE RANK OVER TIME ON GITHUB

source: Github Post- bit.l /whos it


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JAVASCRIPT

OriginTool to enhance web pages introduced by Netscape Communications (1995).

Popular For- Creating Dynamic Web Pages

- General programming (resurgence of server side JS: node.js, etc.)

Notable Catalysts- Prevalence & importance of web applications

- Fungibility of resources and desire for full(er) stack developer roles


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JAVA

OriginGeneral purpose language with write once, run anywhere feature introduced by Sun

Microsystems (1995).

Popular For- Enterprise Applications + Lots of Other Misc. Apps- Android Apps

Notable Catalysts- Use in Android Development


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RUBY + RUBY ON RAILS

OriginRuby: Object-oriented scripting language introduced by Yukihiro Matsumoto (1995).

Rails: Web application framework introduced by David Heinemeier Hansson based on

his work with the Basecam roduct (2005).

Popular For- Web Applications + Lots of Other Misc. Apps

Notable Catalysts- Scaling Issues with Performance & Heuristics (see bit.ly/ohruby)

- Sponsorship


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PHP

OriginSet of tools created by Rasmus Lerdorf (1995).

"I dont know how to stop it, there was never any intent to write a programming

language [] I have absolutely no idea how to write a programming language, I just

kept adding the next logical step on the way."

Popular For- Web Applications + Lots of Other Misc. Apps

Notable Catalysts- Push for formal specification


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Python

OriginGuido van Rossum (1991).

I was looking for a "hobby" programming project that would keep me occupied during

the week around Christmas I decided to write an interpreter for the new scripting

language I had been thinking about lately

Popular For- General Purpose (Popular for Integration Tasks)


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C

OriginDeveloped by Dennis Ritchie at Bell Labs and initially used to re-implement Unix

(1972).

Popular For-

High Performance Projects like Operating Systems & Embedded Systems

Notable Catalysts- Use of C concepts by later languages (C++, C#, Objective C)

- Use as building block in higher-level languages (Python, Perl, PHP)


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C++

OriginDeveloped by Bjarne Stroustrup to create abstractions for C (1983).

Popular For

-High Performance Projects


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C#

OriginDeveloped by Microsoft as object-oriented language for the .NET framework (2000).

Popular For

-.NET programming


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OBJECTIVE-C AND SWIFT

OriginObjective-C: Created by Brad Cox and Tom Love to enhance capabilities of C (1983).

Layer acquired by NeXT and incorporated into Apple application tools.

Swift: Introduced as more developer-friendly enhancement to Objective-C (2014).

Popular For- OSX and iOS programming

Notable Catalysts- Introduction of Swift


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2015 COWAN+

PAGE CONTEST!

Category 1: User InteractionBe prepared to discuss: Persona, user stories, possibly storyboard

Category 2: Controllers and Model ImplementationBe prepared to discuss: User Stories, MVC Explanation, Code/Comments

Category 3: Plug-In/External SW IntegrationBe prepared to discuss: User Stories, Building Blocks, Plug-In Implementation

software development: trends in programming

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