Glossary

SaaS Stack

What is a SaaS stack?


A SaaS stack is a collection of software-as-a-service (SaaS) applications and tools that are used across an organization. While the specific contents of any SaaS stack will vary depending on the nature of the business, it will typically consist of communication, collaboration, sales, marketing, HR, finance and data analytics software.

What is a SaaS stack?


A SaaS stack is a collection of software-as-a-service (SaaS) applications and tools that are used across an organization. While the specific contents of any SaaS stack will vary depending on the nature of the business, it will typically consist of communication, collaboration, sales, marketing, HR, finance and data analytics software.

Related Definitions

Auto-Scaling

What is auto-scaling?


Auto-scaling refers to the automatic adjustment of cloud computing resources based on an organization’s current demand and workload. It dynamically adjusts the allocation of resources to match the evolving requirements of an application or system without the need for manual intervention.


There are a number of benefits to using auto-scaling, the first being cost efficiency. By ensuring that resources are scaled up or down as and when needed, organizations can avoid over-provisioning and subsequently reduce unnecessary expenses. It also helps maintain consistent performance levels by automatically adding resources during peak demand periods.

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Maverick Buying

What is maverick buying?


Maverick spending, also known as rogue spending, can be defined as any purchasing that takes place within an organization, outside of an established procurement process.


In the context of SaaS, maverick spending refers to the acquisition of cloud-based software solutions that are purchased unbeknownst to the finance, IT or procurement teams, and in a way that does not comply with the organization’s formal IT procurement process — and so may not be approved, vetted, or appropriately documented.

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Master Service Agreement (MSA)

What is a Master Service Agreement?


A Master Service Agreement (MSA) is a contract between two parties, in this case the software provider and the buyer, outlining the terms and conditions of the agreement. It will typically cover pricing, payment terms, service levels, intellectual property rights, confidentiality, liability, termination, and dispute resolution.


Unlike a service level agreement (SLA) which outlines the specific performance metrics and criteria for the delivery of a particular service, for example uptime guarantees and support response times, an MSA covers the broader terms of the business relationship.

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Reserved Instances

What are reserved instances?


Reserved Instances (RIs) are a pricing and capacity reservation offering provided by AWS for their EC2 (Elastic Compute Cloud) and RDS (Relational Database Service) services.


They specifically allow users to commit to using a specific instance type in the same region for either a one or three-year term, in exchange for discounts of up to 72% – the exact discount is ultimately dependent on the commitment term, instance type, availability zone and region.


There are various types of Reserved Instances available, each with different terms and levels of flexibility. Standard Reserved Instances provide the highest cost savings but are the least flexible, whereas Convertible Reserved Instances offer more flexibility by allowing you to change instance families within the same instance type.


In contrast, Scheduled Reserved Instances offer a lower discount, but allow you to reserve capacity for specific time windows, such as business hours or weekends, providing cost savings for predictable workloads.

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Zero-Based Budgeting

What is zero-based budgeting?


Zero-based budgeting is an accounting technique that requires all expenses to be justified and approved for each financial period, starting from zero rather than a pre-existing spend. This enables organizations to monitor and assess the necessity of each cost on a more granular level, lowering expenses and promoting fiscal responsibility.


Originally conceived in the 1970s, zero-based budgeting isn’t a new idea — but in the current economic climate, accounting for every dollar is helping businesses to regain control over their outgoings. The technique can be applied to a wide range of costs, from research and development to asset management.

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Enterprise License Agreement (ELA)

What is an ELA?


An Enterprise License Agreement (ELA) is a contract between a software vendor and an enterprise customer that sets out the terms and conditions for the licensing of software products across an enterprise. Unlike a Master License Agreement (MLA) which is a more comprehensive business agreement that can cover a range of products and services, an ELA is often used for specific software products.


While the specific terms and conditions of an ELA can vary, it will typically outline the number and type of licenses covered under the agreement, restrictions or limitation on usage, the duration of the agreement, the fees associated with the license, renewal terms and termination clauses.

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