Projects and Software types
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What an application is:
a model of the rules or “policies” that govern the business in order to make it easier for the users to interact with them.
new Projects
Can be the case that the project has not been deployed or in use
or just in early stages of being in use
The display, manipulation, and storage of large amounts of complex data.
The support and/or automation of business processes that rely on this data.
used by Business
used by other areas of business
makes or saves money for the business
enterprise software usually involves access to persistent data. There's often a lot of data, with multiple users trying to access it concurrently. Enterprise applications usually need to integrate with other systems.
the tools, patterns, and languages used tend to make collaboration, security, stability and scaleability a priority
Enterprise application software is typically hosted on physical servers. The software then relies on a computer network to connect to its many users. Some parts of the software may also rely on intranet and occasionally internet connections. Because enterprise software installs directly on organizational servers, the connection is generally more private and secure.
databases in enterprise application software are meant only for the single enterprise, so other groups aren’t sharing a database and draining its processing capabilities.
is typically owned outright, giving users much more ability to customize it. Enterprises often have in-house developers and programmers tweak or overhaul the software to make it match enterprise needs. It’s also always malleable – if a new enterprise problem comes up, programmers can implement a new solution within the existing software.
Enterprise software is meant for large businesses that require software that can scale with the needs of the business. Enterprise software, therefore, needs to be more powerful than the software sold to smaller businesses
tailored towards ensuring maximizing performance at low costs.
a piece of software provides enough confidence for companies to run the most critical parts of their business with it.
Can be accessed by users for business purpose
Integration with other apps
types
internal (Same department, other department)
external/3rd party
Human(user, support, devs, business), computer
via
HTTP (REST/Webservice/soap/graphql)
messaging services (jms/activemq)
Hessian
file exchange (ftp)
shared databases
Designed to be modified to meet needs of business
Reporting off data for business and functionality
Data most important and valuable resource that comes from the use of this application
Data warehousing
Auditing data
Improving efficiencies in the data, no repeated data
Can be integrated with current business services
Monitoring to diagnose issues and makes sure app is running and alerting if something is wrong or about to go wrong
via metrics, status pages and probes, logging
Availability & Resilancy
does not fall over or break easily
Can be fixed easily (the whole app or a specific action that failed)
run on many servers and/or in different locations
Can handle multiple users
Can handle user access for parts or whole of system
authorization - who can do what in app
authentication - who can access app
Can handle lots of actions, calls to the system (transactions)
Use of concurrency and parallel techniques
scalable application (ie increased replicas)
Can handle high intensive operations (calls to the systems) within agreed sla (service level agreements) timelimits
expensive calls to 3rd parties waiting for the response
calls to long processing services (internal or external)
Use of messaging protocols and patterns
aysnc integration
Use of concurrency and parallel techniques
Secure
encrypted passwords/usernames for database, version control, logs etc
certificates
Access to servers and database with necessary permissions
GDPR
Monitors traffic, access logs
Well tested
Automated
Manual
Automated tasks using a scheduler
Batch tasks to be done immediately or at specific times, done sync or async/concurrently
Use of a queue
Can be user facing (gui) or apis/services, which interact with each other.
Translation from one format to another, with validation and filtering, so that one part of the organisation can understand and use it.
Buisness rules applied
happy paths
sad paths
Does not break easily
handles exceptions gracefully
Deployment
deployed to various environments for testing and prod releases (canary release)
make sure the release passes through stringent controls
app meets deployment requirements
does not break systems when rolled out, can be roll backed
properties/config for different environments
database
Can be deoloyed with little to no down time
Well documented
Code modular, maintainable and extendable
Easy for the business to add or change features, fix bugs within an acceptable time frame instead of rewriting it
Decision on design, code, integration etc are made with
long term lifespan view,
policies of other departments in specifiying, making, testing, releasing and maintaining it, are followed,
Users of app needs are met
ie clients, business, laws and commissions
the day-to-day software we rely on to create documents, databases, spreadsheets, presentations, graphics, and more. We use application software, often shortened to applications or apps, to complete a function or even play a game. Enterprise application software falls into this category, as its function is to support the mission of a large enterprise.
normal software would be the software made with individuals in mind, i.e. retail software or web applications targeting the general populace. Its success depends on how well it is received by users who in most part are offered a ready-made, 'standard issue' product. The development is an investment and the revenue comes from individual product or ad space sales.
Web apps, Microsoft office
Not crtical for running a business
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Enterprise applications
used by different parts or people of the business, ie support, reporting, processing
the software programs that help the computer run, like the operating system. Without systems software, we would have to manually enter directions for each task we want a computer to complete. Examples of systems software include Microsoft Windows, Apple’s OS, and others.
API Design
API Development
Database
Infrastructure
Business Rules and Algorithms
Validation of data
Transformation of data
Communication with services
A web service is a service that can be called by an application. These web services are separate programs that are independent from other applications and can be run on different machines.
A web service exposes an API (Application Programming Interface) to communicate over a network usually through HTTP (Hyper Text Transfer Protocol). HTTP is an application protocol often used for communication between a web-client and a web-server. A web service exposes a port that gives other programs access to its functionality.
SaaS is a popular option for users that need to take care of a very specific purpose. In this software model, users typically rent the software, never owning it. SaaS is often hosted in the cloud, requiring users be connected to the internet to use the software and access the data. (Because of this SaaS can also be known as cloud applications.) But, cloud hosting also means that users can access the software widely, from computers, tablets, and sometimes even smartphones. Popular examples of SaaS include Slack, Salesforce.com, Dropbox, and Zendesk
its drawbacks may include lack of customization and database maneuvering. The inability to customize this software means it often cannot be specific enough to large-scale, enterprise-wide missions
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