Know Where You Stand. Know Where to Go.
Before you build or operate, you need to assess. Our assessments give you a clear, honest picture of your platform maturity, operational gaps, and cost optimisation opportunities. Low commitment, high insight, and the fastest path to measurable improvement.
Our Assessment Portfolio
We offer four structured assessments, each targeting a specific domain. They can be run individually or combined for a comprehensive view across your entire platform landscape.
Why Assess First?
Most organisations we work with do not know the true state of their platforms. They know something is not right: costs are climbing, alerts are noisy, dashboards are stale, or the team is stretched too thin. But without a structured assessment, it is impossible to know where the real problems lie or which improvements will deliver the most value.
An Apto assessment is the fastest way to move from uncertainty to clarity. In 2 to 4 weeks, with zero disruption to your operations, we give you a complete picture of where you stand and a prioritised roadmap for where to go next.
There is no obligation to proceed beyond the assessment. But in practice, 85% of our assessment clients move into a Build or Operate engagement, because the findings make the business case for improvement impossible to ignore.
SIEM Maturity Assessment
The SIEM Maturity Assessment is our most comprehensive assessment, combining platform value analysis with use case effectiveness review. It gives you a complete picture of whether your SIEM is delivering the security outcomes your organisation needs.
What we evaluate: How your SIEM platform (Splunk, Sentinel, or other) is actually being used today, what security outcomes it supports, whether use cases align with your risk register and threat landscape, detection coverage against MITRE ATT&CK, regulatory alignment (NIST, ISO 27001, GDPR, PCI DSS), and whether the cost and operational overhead are justified by the value delivered.
SIEM Maturity Model: Where are you now?
Most organisations we assess sit at Level 2 (Developing) on the maturity model. They have a SIEM, some rules are in place, but detection coverage is patchy, many rules are outdated, and nobody is systematically reviewing effectiveness. The assessment identifies exactly where you are and maps the path to Level 4 or 5.
Sub-services included: Threat model review, platform health check, use case gap analysis against MITRE ATT&CK, detection rule audit, data source quality assessment, licence utilisation review, and regulatory framework mapping.
Observability Maturity Assessment
The Observability Maturity Assessment evaluates how effectively your monitoring tools are serving your engineering and operations teams. It looks beyond whether tools are deployed to whether they are actually driving better reliability outcomes.
What we evaluate: Tool effectiveness across APM, infrastructure monitoring, log analytics, and distributed tracing. Service decomposition and dependency mapping. SLO/SLI maturity and error budget tracking. Platforms covered: limited to Splunk, Grafana, Datadog. Alert quality, noise levels, and escalation paths. Dashboard relevance and usage. Tool sprawl and overlap across teams.
The assessment decomposes your complex services into their constituent components, maps dependencies, and identifies where monitoring coverage is strong and where critical gaps exist. The output is a clear observability maturity score and a prioritised improvement roadmap.
Data Mapping & Discovery
The Data Mapping & Discovery assessment provides a comprehensive view of your telemetry data landscape. Think of it as a discovery exercise: you start by mapping what exists, and the output is your data maturity baseline.
What we map: All telemetry sources across applications, infrastructure, cloud, and security systems. Who consumes each data source and for what purpose. Current data flows and ingestion paths. Gaps, overlaps, and redundancies in collection. Data quality, completeness, and availability. Cost implications of current data routing.
This assessment is the critical bridge between understanding your current state and designing a target-state architecture. It provides the factual foundation for decisions about pipeline design, tool consolidation, and cost optimisation. Most organisations are surprised by what they discover: duplicate data, sources nobody uses, and gaps that leave critical systems unmonitored.
Operational Model Assessment
The Operational Model Assessment is designed for production monitoring teams responsible for ensuring that IT platforms and applications are available, performant, and reliable for end customers.
What we assess: Service decomposition into monitorable components. Dependency mapping and potential points of failure. Alignment of monitoring and alerting with customer-facing SLAs. Alert quality, redundancy, and blind spots. Incident detection, escalation, and response processes. Operational maturity against industry benchmarks.
The assessment identifies whether your monitoring is genuinely aligned with what matters to your customers, or whether it has drifted into monitoring infrastructure for its own sake. The output includes a service dependency map, alert quality audit, and recommendations for optimising monitoring coverage and incident response.
From Assessment to Action
Every Apto assessment is designed to stand on its own as a valuable deliverable. But it is also the natural entry point into our Build and Operate services. The assessment identifies what needs to change; Build implements those changes; Operate ensures they are sustained and continuously improved.
This is not a hard sell. The assessment findings speak for themselves. When you can see that 60% of your detection rules are outdated, or that 45% of your data ingestion is low-value, the business case for improvement becomes self-evident.
From Assessment to Operate: Your Success Journey
What You Receive
Every assessment produces a set of structured deliverables designed to be immediately actionable, whether you proceed with Apto or take the findings to your own team.
What you receive: Assessment Deliverables
Case Study: SIEM Assessment Transforms Security Posture
The Challenge
A UK organisation had invested heavily in Splunk Enterprise Security but was seeing diminishing returns. The SOC team was overwhelmed with alerts, detection rules had not been reviewed in over 18 months, and leadership had no clear picture of whether the SIEM was delivering value commensurate with its cost.
The Approach
Apto conducted a combined SIEM Maturity Assessment and Data Mapping exercise over 3 weeks. We reviewed all 240+ detection rules against the MITRE ATT&CK framework, mapped every data source and its ingestion path, and analysed licence utilisation patterns. The findings were clear: 60% of detection rules were outdated or ineffective, 45% of ingested data was low-value or duplicated, and detection coverage addressed only 28% of relevant ATT&CK techniques.
The Outcome
The assessment led directly to a Build engagement. Within 4 months: 140+ outdated rules were retired or rewritten, detection coverage increased to 72% of relevant techniques, data ingestion was reduced by 40% through pipeline optimisation, and annual licence costs were reduced by £95,000. The assessment paid for itself many times over.
See how we can build your digital capability,
call us on +44(0)845 226 3351 or send us an email…