· ELZA SI
// contents · 15 sections
Two brothers, two languages
In 2005, Anderson Macohin began his career in Brazilian social security law, devoted to an in-depth study of the field: changing legislation, meticulous calculations, technical evidence and constantly evolving case law.
His brother, André Macohin, a graduate in Information Systems, spoke another language: software, databases and automation, to organise the work and expand what teams could do.
In 2007, the two decided to combine that knowledge. In 2008, they started together, each in his own company: André’s technology company and Anderson’s law office. Technology on one side, legal practice on the other; each with the rules of its own profession.
Their partnership was given a name: Projeto Macohin.
Dividir para Somar
From the start, Macohin has grown around one philosophy: Dividir para Somar – divide to add.
Each participant contributes the skill they master. Together, they organise work that would take far more effort if done in isolation.
In 2008, this principle brought two professions together, each within its own structure, without mixing one with the other. Today, it also guides how people and intelligent systems work together.
Sistema Intranet: the hub since 2008
In 2008, to support this partnership, André created Sistema Intranet Macohin. The legal intelligence the system organises came from Anderson: in-depth knowledge of Brazilian social security law, turned into procedures, criteria and work stages. Over time, Sistema Intranet became the hub that connects thousands of legal professionals across Brazil.
Sistema Intranet became the place where the work of different people and teams was organised, shared and tracked. Records connected to documents. Documents, to professional analysis. And every stage became part of a work history.
Like an airport hub connecting flights: on one side, those who look after the client; on the other, those who draft and file the case. In the middle, Sistema Intranet and, since 2022, Elza, bringing technology and artificial intelligence to both sides. One recommends the other – and it is through this network, by referral, that cases arrive.
The technology grew out of real, everyday needs: organising each new case as it comes in, spotting missing documents and routing tasks.
The system evolved alongside the organisation’s knowledge. The teams’ experience guides the improvements; the improvements change the procedures; and the results show what still needs refining.
Today, Sistema Intranet holds more than 315,000 case records, with a presence in Brazil’s 26 states and the Federal District, and 784 active accounts (as of Oct 2026).
Elza A.I.: the intelligence that arrived in 2022
In 2022, after the pandemic, Elza was born inside Sistema Intranet, in an environment that already had its own procedures and systems. Each application started from a concrete need.
Today, Elza reads documents and checks the numbers. She builds the case files, respecting each user’s permissions. She handles the client’s first contact and prepares the case for the professional in charge; the guidance always comes from that professional. She calculates and shows the working. She follows court decisions and flags any change. She talks by voice inside the system. And she searches by meaning, not by exact wording, across more than 15 million case-law documents and more than 2 million publications in the Diário Oficial (Official Gazette).
One principle guides all of this: Elza interprets; code verifies. An estimate stays marked as an estimate. A missing document stays visible. Software rules set permissions, schedules and conditions for execution.
ELZA SI: specialised agents working together
Now, ELZA SI is the next stage: coordinating these capabilities in a more integrated architecture, in which specialised systems share context and carry out sequences of work with defined controls.
In practice, one agent organises the initial account. Another examines the available documents. A third structures the information. Another identifies gaps or inconsistencies. A support tool prepares a preliminary analysis, while control mechanisms check that each stage has been completed.
- account
- documents
- information
- gapsPAUSE · human intervention
- preliminary analysis
- control
- HUMAN DECISION
The professional receives the material already organised, with references, open items and points to watch. Some of these capabilities already work in Sistema Intranet.AI; ELZA SI deepens the integration between them.
And the architecture knows when to stop: when something doesn’t add up, execution is halted and a person is called in.
Human oversight of decisions
Each component has a defined scope. Some look up information. Others suggest or prepare documents. Certain actions run on their own, within defined rules; others require approval.
Permissions, execution logs and review mechanisms are part of the design. Professional responsibility remains with the people qualified to decide.
What Super Intelligence Systems means
It is the concept that defines the new generation of Elza: specialised intelligences operating in an integrated way, evolving towards artificial general intelligence (AGI). It rests on years of procedures documented in a knowledge base that Elza consults, on an infrastructure that keeps watch over its own routines and on the experience of a demanding sector, which can guide other applications. Progress is measured day to day: more consistent information, less rework and better follow-up.
All of Brazil
Born in Brazil. Present across Brazil.
Macohin was born in Balneário Camboriú and is now present in Brazil’s 26 states and the Federal District, through Sistema Intranet. In Brazil, the technology and Sistema Intranet remain based in Balneário Camboriú, with André Macohin.
The people who write this story
Behind the system, people.
on stage
highlights
Gatherings: the network together
The hub also meets off screen.
At the symposia and the tribute evenings, the network that works together through Sistema Intranet meets in person: participants, honourees, the team and the two brothers, in the same room.
Encontros Macohin – Macohin Gatherings · September 2026
Those who shared their technical knowledge at the latest event
Talks, a partners’ panel and the service lab: people who took what they learnt in practice to the stage.
AliceThe client before the case: trust and presence 
AndréOpened the gathering with the new architecture of Projeto Macohin: partnership, ELZA SI and the service lab with Elza. 
CássiaThe interview that prepares the analysis 
CinthiaPartners’ panel 
DaniCommunication and event organisation 
GabrielSpeaker at the gathering 
KarlaBehind the scenes of drafting and filing 
LiuaniService lab 
LouiseClient service, documents and Sistema Intranet 
LuísService lab 
MaraPartners’ panel 
MarceloThe Classic Method and organising procedural tasks 
CarpesOrganising the operation and looking after the people behind the case 
MariannaThe Digital Method · Team management and growth 
MelinaPartners’ panel 
NeydianneThe Digital Method · Team management and growth 
VeroService lab 
VictorService lab 
JacqueA walkthrough of the payments flow
The principle that endures
In 2008, Sistema Intranet began connecting legal professionals. In 2022, with Elza A.I., artificial intelligence became part of the work. Now, with ELZA SI, Macohin aims to integrate these capabilities to transform the way organisations operate.
Dividir para Somar – divide to add: Macohin’s principle since 2008.
