Innovative Solutions for “Big Data”

Early Case Assessment (ECA) - sometimes called Early Data Assessment (EDA) – is arguably the most important addition to the practice of eDiscovery in the last 10 years. As the cost of eDiscovery continues to skyrocket, savvy clients need insight into electronic evidence early in the case lifecycle

BIG Projects

The days of “process everything” are over. Nowadays, clients require vendors to provide an effective, defensible and affordable way to keep costs under control by properly managing irrelevant data. Translation: Vendors without a strong ECA solution simply cannot compete for the large-scale projects.

Control Costs

Once all of the marketing hype is sifted through, the concept of ECA is quite simple: Provide end-users with an inexpensive way to analyze, search and report on large amounts of data. We provide realistic ways for end-users to answer fundamental questions about their data without blowing their budget in the process.


Our team has bridged the gap between what is traditionally three separate phases of the EDRM– Processing, Analysis and Review - by integrating our processing engine with Relativity. The result is an inexpensive early case assessment option for end-users that provides access to their data in a familiar tool (Relativity) and a seamless transition from Analysis into Review.


Known largely for its forensic roots, sweeping file support and quick ingestion speed, Nuix is widely recognized as the industry’s premier tool for large scale data processing. Nuix is a great fit for large cases where time is short and the need for timely information is critical.


Brainspace is an analytics tool particularly well suited for ECA scenarios. The concept clustering feature enables users to map unknown data sets into helpful groupings, providing insight into the overall document population and identifying potentially important documents early in the process. Other features include keyword expansion, email threading and near-duplicate identification.

Frequently Asked Questions

What is the difference between Early Data Assessment (EDA) and Early Case Assessment (ECA)?

Most people use these terms interchangeably, but technically there are some differences.
• EDA is primarily concerned with the ‘data’ – specifically the size, location, and types of files. EDA is well-suited for questions like “how much data matches these criteria?” or “how much will it cost to process this data?” EDA relies mostly on the text and metadata to allow end-users to cull their data prior to data processing and document review.
• ECA, on the other hand, is primarily focused on the actual content of the data and how it relates to the case. For example, questions such as “is there a smoking gun email?” or “what concepts/issues are contained in this custodian’s data?” are typical ECA questions. ECA is also focused on culling the data using metadata and text, but it is also concerned with legal issues such as “should we settle?” or “does our client have a case?”

What types of cases are candidates for ECA?

Generally speaking, large cases (over 50 GB of source data) and data sets where the end-user needs to preview the data in order to develop a culling strategy.

How do I get the source data to Oasis?

There are two ways to get data to and from the data center: ship the physical media or transfer it electronically. Our data center is in Philadelphia, PA and we can receive media 7 days a week. For electronic data transfer (similar to FTP), we have invested in a data-transfer technology that is integrated into the Customer Portal that allows our partners to transfer data at speeds in excess of 20 GB / hour.

How do you charge for ECA/EDA?

ECA is billed based on a nominal “ingestion fee.” This per/GB fee provides an affordable way to get the data into the ECA tool and to reserve the fees associated with “full processing” to the subset of relevant documents identified during ECA. We are more than happy to share all pricing with potential partners, please <> to request our standard pricing.

Who bills the client?

We do not have direct relationships with the end client, only with our Partners. Consequently, we only issue invoices to our Partners and it’s up to them to pass on their cost to the end client.

What is your throughput/capacity for ingesting data?

We are happy to share our throughput metrics with existing or potential customers; please contact us for a detailed description of our capacity. One thing to note: our entire environment is built using virtualized servers which allows us to double our capacity in 24 hours or quadruple within 48 hours. Consequently, our “baseline” capacity is somewhat irrelevant; nevertheless, we are happy to share as much information as you need.