Glossary
The key terms from IT strategy, enterprise architecture and cloud workplaces — explained vendor-neutrally, for decision-makers and architects. Core terms with Deep Dive-Badge haben eigene Detailseiten.
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DaaS & Virtual Desktop
16 BegriffeAzure Virtual Desktop
AVDDeep DiveMicrosoft’s cloud-hosted virtual desktop service in Azure. It enables Windows 10 and 11 multi-session as well as personal desktops, with deep Azure integration.
Citrix DaaS
CVADDeep DiveCitrix's cloud service for Virtual Apps & Desktops. It runs hybrid or multi-cloud (Azure, AWS, GCP, on-premises) with the proven HDX protocols.
Cloud-PC
A Microsoft marketing term for personal, dedicated virtual desktops from the cloud. Synonymous with Windows 365.
Desktop-as-a-Service
DaaSDeep DiveA cloud-based delivery model for virtual desktops. Infrastructure, operations and maintenance sit with the provider; the customer uses only the result.
Gold Image
Deep DiveThe master image of a VDI or DaaS environment. It contains the operating system, applications and base configuration. Every session host is deployed from it.
HDX
Deep DiveCitrix High Definition Experience. Citrix’s proprietary protocol portfolio for streaming video, audio and graphics to the device.
Host Pool
Deep DiveIn AVD: a group of session host VMs with identical configuration. It can run as personal desktops (1:1) or pooled (multi-session).
Multi-Session
Deep DiveTechnology in which several users work simultaneously on a single Windows operating system. Available exclusively with Windows 10 and 11 Enterprise multi-session for AVD.
Nerdio
Deep DiveA toolset for automating and cost-optimising AVD and Windows 365. A de facto standard among AVD administrators. Available as Manager for Enterprise or Manager for MSP.
oneClick
Deep DiveThe DaaS platform from the German company oneClick AG. Focused on small and mid-sized businesses and European cloud providers. Relevant in the DACH region for sovereign cloud scenarios.
PCoIP
Deep DivePC over IP. A display protocol developed by Teradici, used in VMware Horizon and Amazon Workspaces among others.
RDS
RDSDeep DiveRemote Desktop Services. Microsoft’s classic server-based session host model (formerly Terminal Services). The oldest forerunner of DaaS.
Session Host
Deep DiveThe VMs in AVD on which user sessions run. Together they form a host pool.
VDI
VDIDeep DiveVirtual Desktop Infrastructure. An umbrella term for virtualised desktop environments, usually on-premises with hypervisor technologies such as VMware vSphere or Citrix Hypervisor.
VMware Horizon
Deep DiveVMware’s platform for virtual desktops and published applications. A strong competitor to Citrix, particularly in vSphere environments.
Windows 365
W365Deep DiveMicrosoft’s SaaS-based Cloud PC. A fixed flat price per user, simple management through Intune, no Azure expertise required.
Architektur & Strategie
14 BegriffeArchiMate
A modelling language for enterprise architecture, complementary to TOGAF. A graphical description of the business, application and technology layers.
Cloud Adoption Framework
CAFMicrosoft’s reference framework for introducing Azure into organisations in a structured way. It covers strategy, plan, ready, adopt, govern, secure and manage.
Hub-and-Spoke
A network topology with a central hub VNet (shared services) and attached spoke VNets (workloads). The standard pattern in Azure landing zones.
Hybrid Cloud
A combination of on-premises infrastructure and public cloud. It protects existing investment while adding cloud scalability.
ITIL
Information Technology Infrastructure Library. A process framework for IT service management (incidents, changes, problems).
ITQAN
Arabic for 'excellence, perfection'. Used by Sofiane Salmi as a personal quality framework for architecture work — joining craft, method and result.
Landing Zone
Deep DiveA pre-configured Azure environment with governance, networking, identity and security as the foundation for workloads. Enterprise-scale is the recommended model.
Microservices
An architectural pattern in which an application consists of small, independent services. It allows independent deployments and a mix of technologies.
Monolith
The classic architectural pattern: one single, coherent application. Easier to develop, harder to scale than microservices.
Multi-Cloud
Using several public cloud providers at once (Azure plus AWS plus GCP). It reduces vendor lock-in but increases complexity.
SAFe
Scaled Agile Framework. A scaling framework for agile working in large organisations. It complements Scrum and Kanban at programme and portfolio level.
TOGAF
ADMThe Open Group Architecture Framework — the de facto standard framework for enterprise architecture. Its central core is the Architecture Development Method (ADM).
Well-Architected Framework
WAFMicrosoft’s architectural guard rails with five pillars: reliability, security, cost optimisation, operational excellence and performance efficiency.
Zero Trust
Deep DiveA security model based on 'never trust, always verify'. Every access is verified, regardless of network location or previous authentication.
Microsoft ecosystem
17 BegriffeAIP
AIPAzure Information Protection. Classifying and protecting sensitive documents through sensitivity labels. Now part of Purview.
Azure Arc
Extends Azure management to non-Azure resources (on-premises servers, other clouds, Kubernetes). One unified control plane.
Conditional Access
CADeep DiveAn Entra ID function for dynamic access control. It defines rules such as 'only devices with MDE active may reach SharePoint'.
Exchange Online
Microsoft’s cloud-hosted mail server. The core of most Microsoft 365 plans and the successor to local Exchange servers.
FSLogix
Deep DiveA profile management solution for AVD and RDS. It separates user profiles from the operating system and enables fast sign-ins in multi-session environments.
MFA
MFAMulti-factor authentication. An additional security layer alongside the password (an authenticator app, FIDO2 key or biometrics, for example).
Microsoft Defender for Endpoint
MDEDeep DiveEndpoint Detection & Response (EDR) in Microsofts Security-Stack. Schutzkomponente in M365 E5 / Defender for Business.
Microsoft Entra ID
AADDeep DiveMicrosoft’s cloud identity service (formerly Azure Active Directory). The basis for single sign-on, Conditional Access and MFA in the Microsoft cloud.
Microsoft Graph
The central API for all Microsoft 365 data. It enables programmatic access to users, mail, calendars, files and Teams.
Microsoft Intune
Deep DiveMicrosoft’s cloud-based MDM and MAM solution for managing devices and applications. The centrepiece of Microsoft Endpoint Manager (MEM).
Microsoft Purview
A unified governance and compliance suite. It covers data map, data loss prevention, information protection and insider risk management.
Microsoft Sentinel
A cloud-native SIEM and SOAR solution in Azure. It collects security events and automates response through playbooks.
Microsoft Teams
A unified communication platform for chat, meetings, calls and collaboration. The central workplace in Microsoft 365.
OneDrive for Business
Microsoft’s cloud storage for personal work files. 1 TB included with most Microsoft 365 plans.
PIM
PIMPrivileged Identity Management. Time-limited, just-in-time activation of administrator roles in Entra ID. Part of Entra ID P2.
Power Platform
A low-code and no-code suite: Power Apps, Power Automate, Power BI, Power Virtual Agents. It enables citizen development.
SharePoint Online
A cloud collaboration platform for documents, intranets and team sites. The back end for many Microsoft 365 functions.
Compliance & Datenschutz
13 BegriffeAuftragsverarbeitung
AVUnder Article 28 GDPR: the contractual basis between controller and processor. Mandatory when using cloud services.
BAIT
Supervisory requirements for IT in banking. A BaFin circular on IT governance in credit institutions.
BSI IT-Grundschutz
The methodology of the German Federal Office for Information Security. A practical German security standard with its baseline protection compendium.
Data sovereignty
Control over where data is stored, how it is processed and who may access it. In the European context often tied to requirements for EU hosting and EU jurisdiction.
DORA
Digital Operational Resilience Act. An EU regulation on digital resilience in the financial sector. Applicable from January 2025.
DSGVO
GDPRThe EU General Data Protection Regulation, in force since May 2018. It governs the handling of personal data across all EU member states.
EU-US DPF
The EU-US Data Privacy Framework (2023). Successor to the Privacy Shield. It sets standards for permissible data transfers to the United States.
ISO 27001
An internationally recognised standard for information security management systems (ISMS). The basis for certification.
KRITIS
Critical infrastructure. Legally defined sectors (energy, water, IT, transport, finance, health and others) subject to special security obligations.
NIS2
The EU cybersecurity directive (2022/2555), to be transposed by October 2024. It obliges critical infrastructure and 'important entities' to take security measures.
Schrems II
A ruling of the European Court of Justice (2020) that struck down the Privacy Shield. It left data transfers to the United States legally uncertain and led to the EU-US Data Privacy Framework.
SOC 2
Service Organization Control 2. An audit standard for service providers, covering security, availability, confidentiality, processing integrity and privacy.
TISAX
Trusted Information Security Assessment Exchange. The German automotive standard for information security, driven by the VDA.
Endpoint Management
12 BegriffeBitLocker
Deep DiveMicrosoft’s disk encryption. Standard in Windows Enterprise, often enforced through Intune policies and backed up in Entra ID.
BYOD
Bring your own device. Using private devices for work purposes. It calls for MAM (mobile application management) strategies rather than MDM.
Compliance Policy
A rule set in Intune defining when a device counts as 'compliant' (encryption active, password set, operating system current, for example).
CYOD
Choose your own device. The user picks from a device catalogue curated by the employer. A compromise between control and user experience.
Enrollment
The process of registering a device in an MDM or UEM platform. It can be manual or automated (through Autopilot, for example).
Kiosk-Modus
A device profile in which only one or a few applications may run. Typical for information terminals, production machines and self-service stations.
MAM
MAMMobile application management. Only the business application is controlled (Outlook with an app protection policy, for example); the device stays private.
MDM
MDMMobile device management. Full device management (compliance, policies, wipe). Suitable for company-owned devices.
UEM
UEMUnified endpoint management. Unified administration of all devices (Windows, macOS, iOS, Android) from one console. Intune is a UEM.
Windows Autopilot
Deep DiveZero-touch deployment for Windows devices. Take the device out of the box, switch it on, connect to the internet — the rest happens automatically.
Windows Hello for Business
Deep DivePasswordless sign-in via biometrics (fingerprint, facial recognition) or a PIN. It replaces classic passwords on Windows devices.
WUfB
WUfBWindows Update for Business. Microsoft’s service for phased rollout of Windows updates. Configurable through Intune.
Wirtschaftlichkeit & Lizenzen
15 BegriffeAzure Hybrid Benefit
AHBA licensing benefit for existing Windows Server and SQL Server licences with Software Assurance. It cuts Azure costs by up to 85%.
CapEx vs. OpEx
Capital expenditure versus operational expenditure. Cloud shifts CapEx to OpEx — which matters for tax and for the balance sheet.
Chargeback
Allocating costs to those who cause them within an organisation. Necessary for cost ownership in the cloud.
Cloud Economics
The economic view of cloud use. It covers unit economics, turning fixed costs into variable ones, economies of scale and FinOps practices.
CSP
CSPCloud Solution Provider. An indirect licensing model through authorised partners. Monthly billing, flexible scaling.
EA
EAEnterprise Agreement. A direct contract with Microsoft for large customers (more than 500 users). A three-year commitment, often combined with Software Assurance.
FinOps
Financial operations. The discipline of cost transparency and optimisation in the cloud. It combines finance, technology and operations.
Microsoft 365 E3 / E5
Enterprise licence bundles. E3 covers productivity plus basic security; E5 adds advanced security (Defender, Purview) and advanced compliance.
Pay-as-you-go
PAYGConsumption-based billing in the cloud. Maximum flexibility, the highest unit costs. Good for variable or unpredictable workloads.
Reserved Instances
RIA cloud pricing model with a one- or three-year reservation in advance. A discount of 40 to 72% against pay-as-you-go, in return for a fixed-term commitment.
Right-Sizing
Matching VM size to actual need. The most important FinOps lever — many cloud workloads are oversized.
ROI
ROIReturn on investment. A measure of how profitable an investment is. Often complemented by a TCO analysis.
Savings Plan
A flexible cloud discount model. The commitment is to an hourly spend rather than a specific VM, in return for a smaller discount than reserved instances.
Software Assurance
SAMicrosoft’s subscription on volume licences. It brings upgrade rights, training and cloud licence mobility (Azure Hybrid Benefit).
Total Cost of Ownership
TCOThe total cost of a technology across its life cycle. It covers acquisition, operation, maintenance, training and decommissioning — not just licence costs.
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