The modern world is a place whe­re soft­ware and devices are part of our ever­y­day lives. Soft­ware is ever­y­whe­re — insti­tu­ti­ons, offices, fac­to­ries, our homes, cities and vir­tu­al space. Advan­ce­ment of tech­no­lo­gy and deve­lo­p­ment of Inter­net of Things (IoT) is the main for­ce behind the approach of doing things shif­ting from the tra­di­tio­nal way to the modern digi­ta­li­zed way. Today’s soft­ware has advan­ced in func­tio­n­a­li­ty, is more reli­able and secu­re, users, on the other hand, demand for soft­ware that is advan­ced and reli­able to help them achie­ve their dai­ly acti­vi­ties, whe­ther at work or home. Even with the cur­rent sta­te of tech­no­lo­gy, the­re is soft­ware that does not meet user expec­ta­ti­ons or does not offer the requi­red secu­ri­ty level, lea­ving room for secu­ri­ty breaches. This arti­cle will look at some of the fac­tors that affect secu­ri­ty and relia­bi­li­ty of soft­ware and fac­tors that con­tri­bu­te to suc­cess­ful and reli­able software.

Soft­ware relia­bi­li­ty refers to the pro­ba­bi­li­ty of soft­ware not fai­ling or causing incon­ve­ni­en­ce for the user; it is clo­se­ly rela­ted to func­tio­n­a­li­ty. Reli­able soft­ware is unli­kely to fail on a regu­lar basis or pre­vent the user from exe­cu­ting an operation.

Below are dif­fe­rent attri­bu­tes of reli­able software


Soft­ware func­tio­n­a­li­ty refers to the over­all per­for­mance of the soft­ware. User satis­fac­tion is lar­ge­ly rela­ted to the func­tio­n­a­li­ty of the soft­ware; a soft­ware that is fast, sta­ble, offers ade­qua­te secu­ri­ty and access con­trol, can be said to have excel­lent func­tio­n­a­li­ty. Func­tio­n­a­li­ty can be mea­su­red by how users rate the soft­ware in regards to their expe­ri­ence with the software.


Soft­ware Usa­bi­li­ty refers to the ease of soft­ware use. The user inter­face design high­ly affects the usa­bi­li­ty of soft­ware. A good inter­face is the one that pro­vi­des the user with a well-defi­ned navi­ga­ti­on, well-orga­ni­zed com­pon­ents, is easy to use and mini­mi­zes the num­ber of clicks to com­ple­te the task.


Effi­ci­en­cy refers to the soft­ware func­tio­n­a­li­ty based on func­tio­n­al requi­re­ments or spe­ci­fi­ca­ti­ons, genera­ting the expec­ted and accu­ra­te results without failure.


Soft­ware main­ten­an­ce aims at making a soft­ware per­form bet­ter and beco­me more secu­re. Main­ten­an­ce addres­ses soft­ware per­for­mance issu­es, bugs and secu­ri­ty issues.


The core secu­ri­ty requi­re­ment of modern soft­ware is to secu­re the user data from unaut­ho­ri­zed access and also main­tain the user pri­va­cy. To over­co­me secu­ri­ty chal­len­ges, soft­ware is built con­si­de­ring secu­ri­ty as one of the main objectives.

Fac­tors impac­ting to relia­bi­li­ty and secu­ri­ty of software

Design Archi­tec­tu­re

Soft­ware design archi­tec­tu­re refers to a set of princi­ples which defi­nes an app­li­ca­ti­on. It dic­ta­tes an abs­tract frame­work for the soft­ware sys­tem regar­ding the pat­tern of struc­tu­ral orga­niz­a­ti­on. The suc­cess of a soft­ware begins at the design pha­se of soft­ware deve­lo­p­ment when the func­tio­n­a­li­ty, secu­ri­ty pro­to­cols, access con­trol fac­tors are desi­gned. Soft­ware deve­lo­p­ment has signi­fi­cant­ly evol­ved lea­ding to more sta­ble and reli­able design pat­terns, which means more advan­ced design archi­tec­tures have been inven­ted to power the modern app­li­ca­ti­ons. Design pat­terns and design archi­tec­tu­re affect 3 cru­cial aspects of a soft­ware reliability.

App­li­ca­ti­on Speed

The speed of exe­cu­ting tasks high­ly depends on the soft­ware design. Modern soft­ware is desi­gned to be light­weight and swift, built with a small “memo­ry foot­print” to enhan­ce the per­for­mance of the soft­ware even on devices that have a low pro­ces­sing power. Today’s soft­ware aids pro­ces­sing of time-sen­si­ti­ve tasks such as ser­ving thousands of cli­ents for the shor­test peri­od pos­si­ble or get­ting a patient’s medi­cal details on time. Soft­ware users, whe­ther using web soft­ware, mobi­le apps or desk­top apps, want a soft­ware that does not take too long to exe­cu­te com­man­ds and tasks.

Soft­ware Per­for­mance and Stability

Most of the modern soft­ware are built with the objec­ti­ve of sup­por­ting mul­ti­ple con­cur­rent users. This calls for well-thought design archi­tec­tu­re that is capa­ble of hand­ling con­cur­rent users without fai­ling or causing incon­ve­ni­en­ce. Some design archi­tec­tures desi­gned in the ear­lier days were not ori­en­ted to sup­port con­cur­rent users, and this resul­ted in per­for­mance issu­es. This even­tual­ly led to the deve­lo­p­ment of design pat­terns that are ori­en­ted towards deve­lo­ping high-per­for­mance soft­ware, which sup­ports mul­ti­ple con­cur­rent users. The sta­bi­li­ty of soft­ware, even when used by many users at the same time, results in more reli­able per­for­mance of soft­ware that does not fail due to traf­fic or access by many users.

Soft­ware Security

The secu­ri­ty of a soft­ware sys­tem starts at the design pha­se of the soft­ware and ends with the end user. Soft­ware design archi­tec­tu­re signi­fi­cant­ly impacts the soft­ware secu­ri­ty. Soft­ware secu­ri­ty is sup­po­sed to be at the core of the modern soft­ware. End users are incre­a­singly deman­ding for more secu­re soft­ware sys­tems; this is becau­se the data being pro­ces­sed in today’s soft­ware sys­tems con­tain sen­si­ti­ve user data, the pri­va­cy of which is cri­ti­cal. An effec­ti­ve soft­ware would not be suc­cess­ful unless it is secu­re, thus secu­ri­ty and relia­bi­li­ty of soft­ware are both inse­pa­ra­ble and crucial.

User Inter­face (UI) and User Experience

Modern soft­ware is desi­gned to auto­ma­te com­plex tasks, but users are in con­stant look of soft­ware that both does the­se com­plex tasks and has a user-friend­ly inter­face. The user inter­face deter­mi­nes the relia­bi­li­ty and usa­bi­li­ty of soft­ware in a gre­at mea­su­re. UI design pat­terns have been inven­ted to pre­sent the user with a con­sis­tent expe­ri­ence across devices and soft­ware as well. Design phi­lo­so­phies like mate­ri­al design by Goog­le pro­vi­de desi­gners with design princi­ples that help them crea­te apps that have a con­sis­tent expe­ri­ence with mobi­le, web and desk­tops app­li­ca­ti­ons. Soft­ware made in the ear­lier days lacked the con­sis­tent look and expe­ri­ence, hence users had to learn to use the same soft­ware when the working envi­ron­ment or the device chan­ged. Design princi­ples aim at enhan­cing the deve­lo­p­ment of user-friend­ly soft­ware that also mini­mi­zes the time the user spends to com­ple­te a task.

Secu­ri­ty and relia­bi­li­ty of soft­ware in the pre­sent-day world are core fac­tors con­si­de­red in the digi­tal world. Effec­ti­ve­ness of soft­ware is cou­pled with secu­ri­ty to ensu­re that the pri­va­cy of user data is prio­ri­ti­zed. Soft­ware used in sen­si­ti­ve are­as like ban­king, health and government needs to be reli­able and secu­re to pre­vent unaut­ho­ri­zed access and pro­vi­de soft­ware effi­ci­en­cy. As the tech­no­lo­gy advan­ces, secu­ri­ty issu­es are bet­ter addres­sed tog­e­ther with relia­bi­li­ty to effi­ci­ent­ly auto­ma­te our dai­ly activities.