909386
Descripción
Mapa Mental por wisaalbehardien, actualizado hace más de 1 año
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Creado por wisaalbehardien
hace más de 10 años
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SaaS
- Definition
- software hosted, managed and maintained
by a cloud service provider
- made accessible to consumers over
the internet on demand
- configurable resources are offered:
storage, networking capabilities, server
usage, applications
- service accessed through
the browser
- consumer unable to manage or alter underlying
software but rather use it as is and when needed
- software hosted, managed and maintained
by a cloud service provider
- Types of SaaS
enterprise Software
- BI and Analytics
- SaaS BI delivers BI tools such as
dashboards to consolidate key
facts about business for easy
consumption
- consumers are encouraged to view
business critical info during the course
of normal browsing
- SaaS BI delivers BI tools such as
dashboards to consolidate key
facts about business for easy
consumption
- CRM
- provide business solution in
cost effective maner
- Salesforce.com has created a SaaS CRM product
- allows company to focus on their core functions
- provide business solution in
cost effective maner
- ERP
- allows the rental of ERP or use of
ERP for a period of time
- allows the rental of ERP or use of
ERP for a period of time
- BI and Analytics
- SaaS Infrastructure
- application layer
- manages all application services
offered to the consumer
- direct interaction with user
- responsible for providing services
- manages all application services
offered to the consumer
- service management layer
- provides requirements to users per
application requirements
- a functional module
- performs specific tasks per role of
user as governed by specific
business roles
- provides requirements to users per
application requirements
- Business Layer
- made up of business components and
rules that operate on the SaaS service
and its components
- built to allow readily changed to suit business needs
- independent of functional
modules of service
- made up of business components and
rules that operate on the SaaS service
and its components
- Data Layer
- metadata management layer
- bridge between business layer and DML
- bridge between business layer and DML
- data management layer (DML)
- used to store and record data flowing in
and out of SaaS service
- used to store and record data flowing in
and out of SaaS service
- metadata management layer
- Platform Layer
- mapping and scheduling policies for the
translation of consumers Quality of Service
(QoS) requirements
- mapping and scheduling policies for the
translation of consumers Quality of Service
(QoS) requirements
- Infrastructure Layer
- allocates virtual machines to
consumers requests
- allocates virtual machines to
consumers requests
- application layer
- Multi-tenant architecture
- structure whereby a single instance of
software is made up of many consumers
(tenants) on a one to many structure
- consumers sharing the same application and database
- allows provider to reach economy of scale
- allows increased utilization of hardware resources and improved
ease of maintenance during deployments
- structure whereby a single instance of
software is made up of many consumers
(tenants) on a one to many structure
- Web Services
- a software system designed to support
interoperable machine to machine
interaction over a network
- provides a standard mechanism for applications to publish
and subscribe software services over the internet allowing for
SaaS applications to be accessible
- a software system designed to support
interoperable machine to machine
interaction over a network
- SaaS governance and core competency
- Provider management
- service level agreement (SLA)
- governs quality and availability of service
- provides support for consumers
- components
- the parties
- the consumer
- the provider
- third parties
- the consumer
- SLA parameters
- metrics on how the service
parameters are measured
- metrics on how the service
parameters are measured
- Service level objectives
- set of formal expressions that describe conditions and actions
which need to be performed by each party when condition is met
- set of formal expressions that describe conditions and actions
which need to be performed by each party when condition is met
- the parties
- governs quality and availability of service
- provider needs to be able to
mitigate threats to consumer
- service level agreement (SLA)
- security management
- security structure would be in charge of:
identifying and aggregating security
compliancy and privacy issues, and
solutions and processes that would
positively impact the organisation
- can either positively or negatively impact the
adoption of SaaS
- SLA parameters need to mention security measures
- security structure would be in charge of:
identifying and aggregating security
compliancy and privacy issues, and
solutions and processes that would
positively impact the organisation
- Standard Management
- providers need to have a set of
standards
- interoperability
- portability
- security for the services
- values need to be aligned
- need to be alignment in terms of
software requirements
- providers need to have a set of
standards
- Information Management
- need to have correct management of information
- release dates
- technical integration
- budgeting allocation
- system administration
- need to have correct management of information
- Provider management
- Pricing Models
- pay per use
- charged according to number of
units used and each unit is charged
at a fixed price
- small consumers who lack capital
- acts as an operating cost
- allows consumer to test and evaluate the
software to see if it meets needs
- difficult to estimate
- charged according to number of
units used and each unit is charged
at a fixed price
- software rental
- provider and consumer
negotiate subscription fee to
use software
- decided on the amount of time
software is used, number of users
using, the company size, the
functionality being used
- user pays irrespective of
whether they use it or not
- provider and consumer
negotiate subscription fee to
use software
- fixed price
- pay a fixed rate for a certain
number of hours of software
usage per month
- allows for definite cost
- pay a fixed rate for a certain
number of hours of software
usage per month
- revenue percentage
- for consumers selling products and services
- to collect a percentage of revenue
rather than flat fee
- percentage depends on size of
business and nature of industry in
which business operates
- for consumers selling products and services
- hybrid
- allows combination of paying models
- more direct and flexible
relationship between usage and
cost
- difficult to estimate future costs as it allows
consumers to rent some aspects of software
without worrying about amount of units used
- allows combination of paying models
- pay per use
- Advantages
- lower costs
- higher level of service
- convenient and scalable
- flexibility
- higher security and lower risk
- lower costs
- Disadvantages
- financial
- lack of customisation flexibility
- limited integration and transition
- issues specific to developing countries
- data security and integrity
- network security
- business continuity and
service availablity
- data confidentiality and auditability
- vendor and data lock in
- compliance
- organisational change
- financial
- Management Issues
- Finance
- choose correct pricing model to suit needs
- implementation costs
- benefit of elasticity and transference of risk outweighs the costs
- choose correct pricing model to suit needs
- Risk management
- SLA agreement to mitigate costs
- encrypt storage
- firewalls
- virtual local area network
- countries have laws under
which data is governed
- transfer risk of overprovisioing
- transfer risk of under provisioning
- SLA agreement to mitigate costs
- Customer Retention
- application selection
- functional fit
- flexibility and adatability
- reliability
- scability
- fulfilment of organisational needs
- process improvement over existing systems
- functional fit
- Vendor selection
- reputation
- vision and strategy
- financial position
- reliability
- ability to meet future needs
- service quality of implementation
- security and privacy
- implementation time
- resonsiveness and support
- reputation
- Firewall
- firewall stops all incoming traffic
- firewall stops all incoming traffic
- Finance
- SaaS vendors
- Salesforce.com
- Microsoft
- Oracle
- SAP
- Netsuite
- Salesforce.com
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